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Facebook
Logotipo do Facebook
Captura de tela
Sede da Facebook, Inc em Palo Alto, Califórnia
Nomes anteriores The Facebook
Requer pagamento Sim (alguns produtos)
Cadastro Público
Gênero Rede social
País de origem Estados Unidos
Idiomas inglês/castelhano/ italiano/alemão/português
Lançamento 4 de fevereiro de 2004
Pageviews +65 biliões / mês
Posição no Alexa 2ª
Desenvolvedor Mark Zuckerberg
Proprietário Facebook, Inc
URL www.facebook.com
Portal Tecnologias da informação

Facebook é uma rede social lançada em 4 de fevereiro de 2004. Foi fundado por Mark Zuckerberg, Dustin Moskovitz, Eduardo Saverin e Chris Hughes, ex-estudantes da Universidade Harvard. Inicialmente, a adesão ao Facebook era restrita apenas aos estudantes da Universidade Harvard. Ela foi expandida ao Instituto de Tecnologia de Massachusetts (MIT), à Universidade de Boston, ao Boston College e a todas as escolas Ivy League dentro de dois meses. Muitas universidades individuais foram adicionadas no ano seguinte. Eventualmente, pessoas com endereços de e-mail de universidades (por exemplo, .edu, .ac.uk) ao redor do mundo eram eleitas para ingressar na rede. Em 27 de fevereiro de 2006, o Facebook passou a aceitar também estudantes secundaristas e algumas empresas. Desde 11 de setembro de 2006, apenas usuários com 13 anos de idade ou mais podem ingressar.[1] Os usuários podem se juntar em uma ou mais redes, como um colégio, um local de trabalho ou uma região geográfica.

O website possui mais de 500 milhões de usuários ativos,[2] a posição do Facebook no ranking de tráfego de visitantes do Alexa, subiu do 60º lugar para 7º lugar.[3] É ainda o maior site de fotografias dos Estados Unidos, com mais de 60 milhões de novas fotos publicadas por semana,[4] ultrapassando inclusive sites voltados à fotografia, como o Flickr.

No Ad Planner Top 1000 Sites, que registra os sites mais acessados do mundo, através do mecanismo de busca do Google, divulgado em fevereiro de 2011, o Facebook aparece como 1º colocado, com 590 milhões de visitas e um alcance global de 38,1%.[5]
Índice
[esconder]

* 1 Funcionamento
* 2 História
o 2.1 Origem
o 2.2 2005
o 2.3 2006
o 2.4 2007
* 3 Recursos
o 3.1 Mural
o 3.2 Presentes
o 3.3 Marketplace
o 3.4 Cutucar
o 3.5 Status
o 3.6 Eventos
o 3.7 Aplicativos
o 3.8 Facebook Video
o 3.9 Facebook Móvel Grátis
* 4 Controvérsias
* 5 Estatísticas
* 6 Ver também
* 7 Referências
* 8 Ligações externas

[editar] Funcionamento

O website é gratuito para os usuários e gera receita proveniente de publicidade, incluindo banners e grupos patrocinados (cujas cotas seriam de mais de 1,5 milhão de dólares por semana em abril de 2006, segundo rumores).[6] Usuários criam perfis que contêm fotos e listas de interesses pessoais, trocando mensagens privadas e públicas entre si e participantes de grupos de amigos. A visualização de dados detalhados dos membros é restrita para membros de uma mesma rede ou amigos confirmados. De acordo com o TechCrunch, 85% dos membros dos colégios suportados têm um perfil cadastrado no website e, dentre eles, 60% fazem login diariamente no sistema, 85% o faz pelo menos uma vez por semana e 93% o faz pelo menos uma vez por mês. De acordo com Chris Hughes, porta-voz do Facebook, as pessoas gastam em média 19 minutos por dia no Facebook.[6] Em um estudo conduzido em 2006 pela Student Monitor, uma empresa especializada em pesquisas de mercado relacionadas a estudantes universitários de Nova Jérsei, Facebook foi o segundo nome mais "in" entre os estudantes, empatado com cerveja e sexo e perdendo apenas para iPod.[7]

A decisão do Facebook de remover algumas fotos de amamentação enraiveceu alguns usuários, entre os quais a estadounidense Kelli Roman, mãe que teve uma foto que a mostrava alimentando a filha removida pelo Facebook.

Roman é uma das administradoras de uma petição online intitulada "ei, Facebook, amamentação materna não é obscenidade", que foi ganhando mais força, depois das manifestantes organizarem uma "amamentação de protesto" no Facebook e realizaram uma pequena manifestação diante da sede da empresa, em Palo Alto, Califórnia.

A petição já obteve mais de 80 mil assinaturas e mais de 10 mil comentários, e redespertou um velho debate sobre os prós e os contras da amamentação em locais públicos.
[editar] História
[editar] Origem
Mark Zuckerberg, co-fundador e CEO do Facebook

Mark Zuckerberg fundou, juntamente com Dustin Moskovitz, Eduardo Saverin e Chris Hughes, o "The Facebook" em fevereiro de 2004, enquanto frequentava a Universidade de Harvard, com o apoio de Andrew McCollum e Eduardo Saverin. Até o final do mês, mais da metade dos estudantes não-graduados em Harvard foi registrada no serviço. Naquela época, Zuckerberg se juntou a Dustin Moskovitz e Chris Hughes para a promoção do site e o Facebook foi expandido à Universidade de Stanford, à Universidade Columbia e à Universidade Yale.[8] Esta expansão continuou em abril de 2004 com o restante das Ivy League, entre outras escolas. No final do ano letivo, Mark e Dustin se mudaram para Palo Alto, Califórnia, com Andrew que havia conseguido um estágio de verão na Electronic Arts. Eles alugaram uma casa perto da Universidade de Stanford, onde se juntaram a Adam D'Angelo e Sean Parker. Andrew McCollum decidiu deixar a EA para ajudar em tempo integral no desenvolvimento do Facebook e do site "irmão" Wirehog. Em setembro, Divya Narendra, Cameron Winklevoss e Tyler Winklevoss, proprietários do site HarvardConnection, posteriormente chamado ConnectU, entraram com uma ação judicial contra o Facebook alegando que Mark Zuckerberg teria utilizado código fonte ilegalmente do HarvardConnection, do qual ele tinha acesso. A ação não procedeu.[9][10] Também nessa altura, o Facebook recebeu aproximadamente $500,000 do co-fundador do PayPal Peter Thiel, como um angel investor. Em dezembro a base de usuários ultrapassou 1 milhão.
[editar] 2005

Em maio de 2005, o Facebook recebeu 12,8 milhões de dólares de capital da Accel Partners.[11] Em 23 de agosto de 2005, o Facebook compra o domínio facebook.com da Aboutface por $200,000 e descarta definitivamente o "The" de seu nome. A esta data, o Facebook foi "repaginado" recebendo uma atualização que, segundo Mark, deixou mais amigável aos usuários. Também neste mês, Andrew McCollum retornou a Harvard, mas continuou atuando como consultor e retornando ao trabalho em equipe durante os verões. Como antes, Chris Hughes permaneceu em Cambridge, enquanto exercia sua função como representante da empresa. Então, em 2 de setembro, Mark Zuckerberg lançou a interação do Facebook com o ensino secundário. Embora inicialmente definido para separar as "comunidades" para que os usuários precisassem ser convidados para participar, dentro de 15 dias as redes escolares não mais exigiam uma senha para acessar (embora o cadastro no Facebook ainda exigisse). Em outubro, a expansão começou a atingir universidades de pequeno porte e instituições de ensino pós-secundário (junior colleges) nos Estados Unidos, Canadá e Reino Unido, além de ter expandido a vinte e uma universidades no Reino Unido, ao Instituto Tecnológico y de Estudios Superiores de Monterrey no México, a Universidade de Porto Rico em Porto Rico e toda a Universidade das Ilhas Virgens nas Ilhas Virgens Americanas. Em 11 de dezembro de 2005, universidades da Austrália e Nova Zelândia aderiram ao Facebook, elevando sua dimensão para mais de 2 mil colégios e mais de 25 mil universidades em todo o Estados Unidos, Canadá, México, Reino Unido, Austrália, Nova Zelândia e Irlanda.[12]
[editar] 2006

Em 27 de fevereiro de 2006, o Facebook passou a permitir que estudantes secundaristas adicionassem estudantes universitários a pedido dos usuários. Um mês depois, em 28 de março, a revista BusinessWeek noticia que uma potencial aquisição estava em negociação. O Facebook declaradamente recusou uma oferta de $750 milhões, e estimou seu preço em $2 bilhões.[13] Em abril, Peter Thiel, Greylock Partners e Meritech Capital Partners investiram um adicional de $25 milhões no site.[14] Em maio, a rede do Facebook se expandiu à Índia, no Instituto Indiano de tecnologia (IIT) e no Instituto Indiano de gestão (IIG). No mês seguinte, o Facebook ameaçou pedir até $100,000 ao Quizsender.com por violação de direitos autorais por copiar a ferramenta "visual e sensação" do Facebook.[15][16] Em 25 de junho, novos recursos foram adicionados ao site para potencialmente atrair receitas adicionais. Foi feita uma promoção em parceria com a iTunes Store onde membros da Apple Students iriam receber gratuitamente 25 músicas de amostra em vários gêneros musicais por semana até 30 de setembro. A promoção propunha deixar os estudantes mais entusiasmados e familiarizados com os serviços.[17] Em meados de agosto, o Facebook adicionou universidades na Alemanha e colégios em Israel à sua rede. Em 22 de agosto o Facebook introduz o Facebook Notes, um recurso de blog com sistema de tags, imagens embutidas, entre outros recursos também permitindo a importação dos serviços de blogs Blogger, Xanga e LiveJournal. Este recurso ganhou posteriormente a possibilidade de comentar as postagens comuns nos sistemas "concorrentes". Em 11 de setembro o Facebook foi aberto para cadastro para todo o público.[18]
[editar] 2007

Em 10 de maio de 2007, o Facebook anuncia um plano para adicionar classificados grátis em seu website.[19] Este recurso ganhou vida em 14 de maio e foi chamado Facebook Marketplace. Também em maio, o Facebook lança sua API, chamada Facebook Plataform, para desenvolvimento de aplicações para serem usadas no site.[20] Em junho, a parceria com a iTunes Store foi continuada oferecendo amostras de músicas grátis para o grupo Apple Students. Em julho o Facebook anuncia sua primeira aquisição: Parakey, Inc, de Blake Ross e Joe Hewitt. Em agosto, a companhia foi capa da edição especial anual "College" da Newsweek.[21] Em 25 de setembro surge um rumor de que a Microsoft teria interesse em comprar parte do Facebook;[22] rumor este confirmado um mês depois com a compra de 1.6% do Facebook por $240 milhões.[23] Uma venda completa do Facebook é no momento, improvável, diz Mark Zuckerberg. Em 7 de novembro de 2007, o Facebook anuncia o Facebook Ads, uma iniciativa de marketing que inclui um sistema de sites parceiros para permitir aos usuários compartilhar informações sobre suas atividades neles com amigos no Facebook (Facebook Beacon);[24] a possibilidade de empresas hospedarem páginas no Facebook de várias marcas, produtos e serviços (Facebook Pages); um sistema de veiculação de anúncios baseado no perfil do usuário e de seus amigos e em dados de atividade (Facebook Social Ads); e um serviço de fornecimento de publicidade com empresas fornecendo dados analíticos incluindo métricas de desempenho (Facebook Insights). No que diz respeito à privacidade, o Facebook afirma que "nenhuma informação pessoal identificável é partilhada com o anunciante ao criar a Social Ad" e que "usuários do Facebook apenas verão os Social Ads à medida que os amigos compartilharem informações com eles".[25] O Facebook Ads substitui o programa anterior Facebook Flyers[26] Em 30 de novembro de 2007 o bilionário chinês Li Ka-Shing investe $60 milhões no Facebook.
[editar] Recursos
[editar] Mural

O Mural é um espaço na página de perfil do usuário que permite aos amigos postar mensagens para ele ver. Ele é visível para qualquer pessoa com permissão para ver o perfil completo, e posts diferentes no mural aparecem separados no "Feed de Notícias". Muitos usuários usam os murais de seus amigos para deixar avisos e recados temporários. Mensagens privadas são salvas em "Mensagens", que são enviadas à caixa de entrada do usuário e são visíveis apenas ao remetente e ao destinatário, bem como num e-mail. Em julho de 2007 o Facebook, que só permitia posts de textos, passou a permitir postagem de anexos no mural.[27]
[editar] Presentes

Em fevereiro de 2007 o Facebook adicionou um novo recurso de Presentes ("Gifts") em seu site. Amigos podem dar Presentes — pequenas imagens desenhadas por Susan Kare, ilustradora que desenha os ícones da Apple — a outros escolhendo um da Loja de presentes virtuais do Facebook e adicionando uma mensagem.Os ´´Presentes`` dados aparecem no mural de outros usuários com a mensagem enviada, a menos que o doador queira dar o presente´' privadamente, nesse caso o nome do doador e a mensagem não são exibidos aos outros usuários. Além disso, todas os presentes, incluindo os privadas, são exibidas em uma caixa no perfil chamada "Caixa de presentes(Gift box)", junto do nome do doador ou da palavra "Privado" para presentes privados.

Assim que se registram no site, os usuários do Facebook ganham uma Presente gratuito para dar a quem quiser. Cada presente adicional pode ser comprado na Loja de presentes virtuais do Facebook por 1 dólar. A primeira seleção de presentes disponíveis teve como tema o dia dos namorados e 50% da receita líquida recebida em fevereiro de 2007 foi doada à instituição de caridade Susan G. Komen for the Cure. Após fevereiro, a doação deixou de ser feita. Pouco depois, o Facebook passou a disponibilizar novos presentes a cada dia, a maioria das quais tinham quantidade limitada de tempo e venda.

Com a chegada das "Aplicações", surgiu uma nova forma de presentear com os presentes sem a necessidade de se pagar 1 dólar, porém, as da aplicação "Presentes gratuítos", criadas por Zachary Allia,[28] não são semelhantes às oficiais, além de serem exibidas de maneira diferente.
[editar] Marketplace

Em maio de 2007, o Facebook introduziu o "Facebook Marketplace", permitindo aos usuários publicar classificados gratuitamente dentro das seguintes categorias: For Sale (à venda), Housing (imoveis), Jobs (emprego) e Other (outros); e podem ser postados em diferentes formatos.[29]
[editar] Cutucar

O Facebook adicionou um recurso chamado "Cutucar" (em inglês Poke) para que os usuários enviem "cutucadas" uns aos outros. Segundo o FAQ do Facebook, uma cutucada é "uma forma de você interagir com seus amigos no Facebook. Quando criamos o cutucar, nós achamos que seria legal ter um recurso sem qualquer finalidade específica. As pessoas interpretam a cutucada em muitas maneiras diferentes, e nós encorajamos que você venha com seu próprio significado". A princípio, ele se destina a servir como uma forma de atrair a atenção de outro usuário. No entanto, muitos usuários utilizam-o como uma forma de dizer "Olá",[6] e alguns como uma "investida sexual".[30] Há muitas aplicações, tais como "X Me" e "SuperPoke!", que permitem ao usuário enviar qualquer ação no lugar da palavra "poke".
[editar] Status

O recurso "Status" permite aos usuários informar a seus amigos e a membros de sua comunidade seu paradeiro atual e suas ações. Atualizações de Status estão disponíveis na sessão "Recently updated" (Atualizações recentes) de toda sua lista de amigos.
[editar] Eventos

Os "Eventos" são uma maneira para que os membros informem seus amigos sobre os próximos eventos em sua comunidade, para organizar encontros sociais ou simplesmente para dizer o que está sentindo no momento.[31]
[editar] Aplicativos

Em 24 de maio de 2007, o Facebook lança o "Facebook Plataform",[32] na qual prevê o framework para desenvolvedores criarem aplicações que interajam com os recursos internos do Facebook. Até jogos como xadrez e scrabble estão disponíveis. Em 5 de dezembro de 2007, mais de 10 000 aplicações já estavam disponíveis.[33] Em 4 de julho de 2007 surge a Altura, primeira empresa do mundo de capital de risco voltada ao Facebook. Em 29 de agosto de 2007, o Facebook alterou a forma com que a popularidade das aplicações são medidas a fim de dar mais atenção às aplicações mais envolventes, seguindo críticas de que um ranking de aplicações apenas por número de usuários gerava vantagem para as absolutamente virais.[34]
[editar] Facebook Video

Enquanto o Facebook lançava sua plataforma, ele também lançou uma aplicação [35] onde se pode partilhar vídeos dentro do Facebook. Os usuários podem adicionar vídeos por meio de um arquivo do computador, adicionando diretamente do telefone celular através do "Facebook Móvel" ou utilizando um recurso de gravação direta de uma webcam. Além disso, pode-se "taggear" seus amigos nos vídeos. Este recurso surgiu devido à concorrência com o MySpace. No entanto, o Facebook Video não permite compartilhar vídeos fora do Facebook nem baixar ou exportar os vídeos enviados. Para suprir a necessidade de baixar os vídeos, um texto para Greasemonkey publicado no Userscripts.com, cumpre esta função.
[editar] Facebook Móvel Grátis

Em 2010, o Facebook juntamente com a operadora de celular TIM do Brasil, lançaram o serviço de acesso grátis ao site 0.facebook.com através do próprio aparelho celular. Apesar do serviço ser grátis para todos os planos como Pré e Pós-pago, o serviço causou muitos transtornos por estar fazendo cobranças indevidas aos usuários Pré-pagos.
[editar] Controvérsias

Em junho de 2011 o Ministério da Justiça do Brasil cobrou esclarecimentos sobre a ativação do serviço de reconhecimento facial, devido à exposição inadequada que isto pode gerar aos usuários.[36]
[editar] Estatísticas
Estatísticas do Facebook em dezembro de 2010[37]
Usuários ativos Mais de 530 milhões
Média de amigos por usuário 130 pessoas
Média de uso por mês 700 minutos por usuário
Buscas Mais de 500 milhões por mês[38]
Maiores países Estados Unidos
Reino Unido
Índia
Turquia
França
Itália
Canadá
Filipinas
Espanha
México
150 milhões de usuários ativos que acessam o facebook de dispositivos movéis
30 milhões de conteúdos compartilhados Web links, fotos, posts, notas
[editar] Ver também

* Lista de redes sociais
* Netlog
* Orkut
* Hi5
* Twitter
* A Rede Social

Referências

1. ↑ Facebook - Terms of Use
2. ↑ Facebook - Statistics
3. ↑ facebook.com - Traffic Details from Alexa
4. ↑ Facebook Photos Infrastructure
5. ↑ Ad Planner Top 1000 Sites - Junho/2010
6. ↑ a b c 85% of College Students use FaceBook
7. ↑ "Apple surpasses beer on college campuses", CNN, 8 de junho de 2006
8. ↑ Facebook - Timeline
9. ↑ Lawsuit Threatens To Close Facebook
10. ↑ TheFacebook.com faces lawsuit
11. ↑ ACCEL PARTNERS INVESTS IN THEFACEBOOK.COM
12. ↑ Teens hang out at MySpace
13. ↑ Facebook's on the Block
14. ↑ Investors Add $25M to Facebook’s Coffers - acessado em 25-04-2006
15. ↑ Facebook sends out its lawyers
16. ↑ Facebook threaten legal action
17. ↑ Infinite Loop: Apple and Facebook partner up for back to school iTunes promo
18. ↑ Facebook to Open to All Internet Users
19. ↑ Facebook to Offer Free Classifieds
20. ↑ Facebook's plan to hook up the world
21. ↑ Facebook Grows Up: Can It Stay Relevant?
22. ↑ Report: Microsoft May Buy Facebook Stake
23. ↑ Microsoft compra participação de US$ 240 milhões no Facebook
24. ↑ Leading Websites Offer Facebook Beacon for Social Distribution
25. ↑ Facebook Unveils Facebook Ads
26. ↑ Flyers Pro
27. ↑ Facebook is off-the-wall
28. ↑ Free Gifts one-ups Facebook using their own platform
29. ↑ Facebook Adds 'Marketplace' of Classified Ads
30. ↑ Facebook 'poke' leads to awkward one-nighter
31. ↑ Facebook Events Help
32. ↑ Facebook Platform Launches
33. ↑ Facebook - Application Directory
34. ↑ Facebook - Developers
35. ↑ Facebook Video Launches: YouTube Beware!
36. ↑ Ministério da Justiça exige explicações ao Facebook. Tecnoblog (9 de junho de 2011). Página visitada em 10 de junho de 2011. "O Facebook começou a ativar automaticamente o reconhecimento facial nas contas dos usuários. [...] Claro que, mais uma vez, a privacidade dos internautas é colocada em questão. Pior de tudo é que o Facebook habilitou o reconhecimento facial em diversas contas de usuários sem pedir permissão. Pum, está ativado. O órgão de defesa do consumidor do Ministério da Justiça não gostou muito dessa história e solicitou que o Facebook se explique sobre a ativação automática do recurso. "O Departamento de Proteção e Defesa do Consumidor (DPDC), do Ministério da Justiça, notificou o Facebook a prestar esclarecimentos sobre um novo sistema que reconhece pessoas automaticamente. A ferramenta possibilita aos usuários identificar seus amigos em fotos postadas no álbum pessoal, aumentando potencialmente a exposição da imagem dos usuários da rede.""
37. ↑ Facebook - Press Room - Statistics
38. ↑ Do we really need to write our own search engine?

[editar] Ligações externas

* Facebook.com (em inglês)
* Blog oficial (em inglês)

Obtida de "http://pt.wikipedia.org/wiki/Facebook"
Categoria: Facebook
Categoria oculta: !Artigos bons na Wikipédia em inglês
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Facebook
From Wikipedia, the free encyclopedia
Jump to: navigation, search
This article is about the website. For the collection of photographs of people after which it is named, see Facebook (directory).
Page semi-protected
Facebook, Inc. Facebook.svg
Type Private
Founded Cambridge, Massachusetts[1] (2004 (2004))
Founder

* Mark Zuckerberg
* Eduardo Saverin
* Dustin Moskovitz
* Chris Hughes

Headquarters Palo Alto, California, U.S., will be moved to Menlo Park, California, U.S. in June 2011
Area served Worldwide
Key people

* Mark Zuckerberg (CEO)
* Chris Cox (VP of Product)
* Sheryl Sandberg (COO)
* Donald E. Graham (Chairman)

Revenue increase US$2 billion (2010 est.)[2]
Net income N/A
Employees 2000+ (2011)[3]
Website facebook.com
IPv6 support www.v6.facebook.com
Alexa rank steady 2 (May 2011[update])[4]
Type of site Social networking service
Advertising Banner ads, referral marketing, casual games
Registration Required
Users 600 million[5][6] (active in January 2011)
Available in Multilingual
Launched February 4, 2004
Current status Active
Screenshot
Facebook log in.png

Screenshot of Facebook's homepage

Facebook is a social networking service and website launched in February 2004, operated and privately owned by Facebook, Inc.[1] As of January 2011[update], Facebook has more than 600 million active users.[5][6] Users may create a personal profile, add other users as friends, and exchange messages, including automatic notifications when they update their profile. Facebook users must register before using the site. Additionally, users may join common-interest user groups, organized by workplace, school or college, or other characteristics. The name of the service stems from the colloquial name for the book given to students at the start of the academic year by university administrations in the United States to help students get to know each other better. Facebook allows any users who declare themselves to be at least 13 years old to become registered users of the website.

Facebook was founded by Mark Zuckerberg with his college roommates and fellow computer science students Eduardo Saverin, Dustin Moskovitz and Chris Hughes.[7] The website's membership was initially limited by the founders to Harvard students, but was expanded to other colleges in the Boston area, the Ivy League, and Stanford University. It gradually added support for students at various other universities before opening to high school students, and, finally, to anyone aged 13 and over, but based on ConsumersReports.org on May 2011, there are 7.5 million children under 13 with accounts, violating the site's terms.[8]

A January 2009 Compete.com study ranked Facebook as the most used social networking service by worldwide monthly active users, followed by MySpace.[9] Entertainment Weekly included the site on its end-of-the-decade "best-of" list, saying, "How on earth did we stalk our exes, remember our co-workers' birthdays, bug our friends, and play a rousing game of Scrabulous before Facebook?"[10] Quantcast estimates Facebook has 138.9 million monthly unique U.S. visitors in May 2011.[11] According to Social Media Today, in April 2010 an estimated 41.6% of the U.S. population had a Facebook account.[12]
Contents

* 1 History
* 2 Company
o 2.1 Ownership
o 2.2 Management
o 2.3 Revenue
o 2.4 Mergers and acquisitions
o 2.5 Operations
* 3 Website
* 4 Reception
* 5 Privacy
* 6 Criticism
* 7 Media impact
* 8 Social impact
* 9 Political impact
* 10 Media
* 11 See also
* 12 Notes
* 13 References
* 14 Further reading
* 15 External links

History
Main articles: History of Facebook and Timeline of Facebook

Mark Zuckerberg wrote Facemash, the predecessor to Facebook, on October 28, 2003, while attending Harvard as a sophomore. According to The Harvard Crimson, the site was comparable to Hot or Not, and "used photos compiled from the online facebooks of nine houses, placing two next to each other at a time and asking users to choose the 'hotter' person".[13][14]
Mark Zuckerberg co-created Facebook in his Harvard dorm room.
Chris Hughes
Dustin Moskovitz
Sean Parker
Cameron Winklevoss
Divya Narendra

To accomplish this, Zuckerberg hacked into the protected areas of Harvard's computer network and copied the houses' private dormitory ID images. Harvard at that time did not have a student "facebook" (a directory with photos and basic information). Facemash attracted 450 visitors and 22,000 photo-views in its first four hours online.[13][15]

The site was quickly forwarded to several campus group list-servers, but was shut down a few days later by the Harvard administration. Zuckerberg was charged by the administration with breach of security, violating copyrights, and violating individual privacy, and faced expulsion. Ultimately, however, the charges were dropped.[16] Zuckerberg expanded on this initial project that semester by creating a social study tool ahead of an art history final, by uploading 500 Augustan images to a website, with one image per page along with a comment section.[15] He opened the site up to his classmates, and people started sharing their notes.

The following semester, Zuckerberg began writing code for a new website in January 2004. He was inspired, he said, by an editorial in The Harvard Crimson about the Facemash incident.[17] On February 4, 2004, Zuckerberg launched "Thefacebook", originally located at thefacebook.com.[18]

Six days after the site launched, three Harvard seniors, Cameron Winklevoss, Tyler Winklevoss, and Divya Narendra, accused Zuckerberg of intentionally misleading them into believing he would help them build a social network called HarvardConnection.com, while he was instead using their ideas to build a competing product.[19] The three complained to the Harvard Crimson, and the newspaper began an investigation. The three later filed a lawsuit against Zuckerberg, subsequently settling.[20]

Membership was initially restricted to students of Harvard College, and within the first month, more than half the undergraduate population at Harvard was registered on the service.[21] Eduardo Saverin (business aspects), Dustin Moskovitz (programmer), Andrew McCollum (graphic artist), and Chris Hughes soon joined Zuckerberg to help promote the website. In March 2004, Facebook expanded to Stanford, Columbia, and Yale.[22] It soon opened to the other Ivy League schools, Boston University, New York University, MIT, and gradually most universities in Canada and the United States.[23][24]

Facebook incorporated in the summer of 2004, and the entrepreneur Sean Parker, who had been informally advising Zuckerberg, became the company's president.[25] In June 2004, Facebook moved its base of operations to Palo Alto, California.[22] It received its first investment later that month from PayPal co-founder Peter Thiel.[26] The company dropped The from its name after purchasing the domain name facebook.com in 2005 for $200,000.[27]
Total active users[N 1] Date Users
(in millions) Days later Monthly growth[N 2]
02008-08-26 August 26, 2008 &0000000000000100000000100[28] &00000000000016650000001,665 178.38%
02009-04-08 April 8, 2009 &0000000000000200000000200[29] &0000000000000225000000225 13.33%
02009-09-15 September 15, 2009 &0000000000000300000000300[30] &0000000000000150000000150 10%
02010-02-05 February 5, 2010 &0000000000000400000000400[31] &0000000000000143000000143 6.99%
02010-07-21 July 21, 2010 &0000000000000500000000500[32] &0000000000000166000000166 4.52%
02011-01-05 January 5, 2011 &0000000000000600000000600[33][N 3] &0000000000000168000000168 3.57%

Facebook launched a high-school version in September 2005, which Zuckerberg called the next logical step.[34] At that time, high-school networks required an invitation to join.[35] Facebook later expanded membership eligibility to employees of several companies, including Apple Inc. and Microsoft.[36] Facebook was then opened on September 26, 2006, to everyone of age 13 and older with a valid email address.[37][38]

On October 24, 2007, Microsoft announced that it had purchased a 1.6% share of Facebook for $240 million, giving Facebook a total implied value of around $15 billion.[39] Microsoft's purchase included rights to place international ads on Facebook.[40] In October 2008, Facebook announced that it would set up its international headquarters in Dublin, Ireland.[41] In September 2009, Facebook said that it had turned cash-flow positive for the first time.[42] In November 2010, based on SecondMarket Inc., an exchange for shares of privately held companies, Facebook's value was $41 billion (slightly surpassing eBay's) and it became the third largest US web company after Google and Amazon.[43] Facebook has been identified as a possible candidate for an IPO by 2013.[44]

Traffic to Facebook increased steadily after 2009. More people visited Facebook than Google for the week ending March 13, 2010.[45]

In March 2011 it was reported that Facebook removes approximately 20,000 profiles from the site every day for various infractions, including spam, inappropriate content and underage use, as part of its efforts to boost cyber security.[46]

In early 2011, Facebook announced plans to move to its new headquarters, the former Sun Microsystems campus in Menlo Park, California.[47][48]
Company
Entrance to Facebook's current headquarters in the Stanford Research Park, Palo Alto, California.
Ownership

Mark Zuckerberg owns 24% of the company, Accel Partners owns 10%, Digital Sky Technologies owns 10%,[49] Dustin Moskovitz owns 6%, Eduardo Saverin owns 5%, Sean Parker owns 4%, Peter Thiel owns 3%, Greylock Partners and Meritech Capital Partners own between 1 to 2% each, Microsoft owns 1.3%, Li Ka-shing owns 0.75%, the Interpublic Group owns less than 0.5%, a small group of current and former employees and celebrities own less than 1% each, including Matt Cohler, Jeff Rothschild, Adam D'Angelo, Chris Hughes, and Owen Van Natta, while Reid Hoffman and Mark Pincus have sizable holdings of the company, and the remaining 30% or so are owned by employees, an undisclosed number of celebrities, and outside investors.[50] Adam D'Angelo, chief technology officer and friend of Zuckerberg, resigned in May 2008. Reports claimed that he and Zuckerberg began quarreling, and that he was no longer interested in partial ownership of the company.[51]
Management

Key management personnel comprise Chris Cox (VP of Product), Sheryl Sandberg (COO), and Donald E. Graham (Chairman). As of April 2011[update], Facebook has over 2,000 employees, and offices in 15 countries.[52]
Revenue

Most of Facebook's revenue comes from advertising. Microsoft is Facebook's exclusive partner for serving banner advertising,[53] and therefore Facebook serves only advertisements that exist in Microsoft's advertisement inventory.
Revenues
(estimated, in millions US$) Year Revenue Growth
2006 $&000000000000005200000052[54] —
2007 $&0000000000000150000000150[55] 188%
2008 $&0000000000000280000000280[56] 87%
2009 $&0000000000000775000000775[57] 177%
2010 $&00000000000020000000002,000[2] 158%

Facebook generally has a lower clickthrough rate (CTR) for advertisements than most major websites. Banner advertisements on Facebook have generally received one-fifth the number of clicks compared to those on the Web as a whole.[58] This means that a smaller percentage of Facebook's users click on advertisements than many other large websites. For example, while Google users click on the first advertisement for search results an average of 8% of the time (80,000 clicks for every one million searches),[59] Facebook's users click on advertisements an average of 0.04% of the time (400 clicks for every one million pages).[60]

Sarah Smith, who was Facebook's Online Sales Operations Manager, confirmed that successful advertising campaigns can have clickthrough rates as low as 0.05% to 0.04%, and that CTR for ads tend to fall within two weeks.[61] Competing social network MySpace's CTR, in comparison, is about 0.1%, 2.5 times better than Facebook's but still low compared to many other websites. Explanations for Facebook's low CTR include the fact that Facebook's users are more technologically savvy and therefore use ad blocking software to hide advertisements, that users are younger and therefore better at ignoring advertising messages, and that MySpace users spend more time browsing through content, while Facebook users spend their time communicating with friends and therefore have their attention diverted away from advertisements.[62]

On pages for brands and products, however, some companies have reported CTR as high as 6.49% for Wall posts.[63] Involver, a social marketing platform, announced in July 2008 that it managed to attain a CTR of 0.7% on Facebook (over 10 times the typical CTR for Facebook ad campaigns) for its first client, Serena Software, managing to convert 1.1 million views into 8,000 visitors to their website.[64] A study found that, for video advertisements on Facebook, over 40% of users who viewed the videos viewed the entire video, while the industry average was 25% for in-banner video ads.[65]
Mergers and acquisitions
Main article: List of acquisitions by Facebook

On November 15, 2010, Facebook announced it had acquired FB.com from the American Farm Bureau Federation for an undisclosed amount. On January 11, 2011, the Farm Bureau disclosed $8.5 million in "domain sales income", making the acquisition of FB.com one of the ten highest domain sales in history.[66]
Operations

A custom-built data center with substantially reduced ("38% less") power consumption compared to existing Facebook data centers opened in April 2011 in Prineville, Oregon.[67]
Website
Main articles: Facebook features and Facebook Platform
Facebook's homepage features a login form on the top right for existing users, and a registration form directly underneath for new visitors.
Profile shown on Facebook in 2011
Profile shown on Thefacebook in 2005
Facebook profile shown in 2007

Users can create profiles with photos, lists of personal interests, contact information, and other personal information. Users can communicate with friends and other users through private or public messages and a chat feature. They can also create and join interest groups and "like pages" (called "fan pages" until April 19, 2010), some of which are maintained by organizations as a means of advertising.[68]

To allay concerns about privacy, Facebook enables users to choose their own privacy settings and choose who can see specific parts of their profile.[69] The website is free to users, and generates revenue from advertising, such as banner ads.[70] Facebook requires a user's name and profile picture (if applicable) to be accessible by everyone. Users can control who sees other information they have shared, as well as who can find them in searches, through their privacy settings.[71]

The media often compare Facebook to MySpace, but one significant difference between the two websites is the level of customization.[72] Another difference is Facebook's requirement that users give their true identity, a demand that MySpace does not make.[73] MySpace allows users to decorate their profiles using HTML and Cascading Style Sheets (CSS), while Facebook allows only plain text.[74] Facebook has a number of features with which users may interact. They include the Wall, a space on every user's profile page that allows friends to post messages for the user to see;[75] Pokes, which allows users to send a virtual "poke" to each other (a notification then tells a user that they have been poked);[76] Photos, where users can upload albums and photos;[77] and Status, which allows users to inform their friends of their whereabouts and actions.[78] Depending on privacy settings, anyone who can see a user's profile can also view that user's Wall. In July 2007, Facebook began allowing users to post attachments to the Wall, whereas the Wall was previously limited to textual content only.[75]
Facebook mobile graphical user interface

On September 6, 2006, a News Feed was announced, which appears on every user's homepage and highlights information including profile changes, upcoming events, and birthdays of the user's friends.[79] This enabled spammers and other users to manipulate these features by creating illegitimate events or posting fake birthdays to attract attention to their profile or cause.[80] Initially, the News Feed caused dissatisfaction among Facebook users; some complained it was too cluttered and full of undesired information, others were concerned that it made it too easy for others to track individual activities (such as relationship status changes, events, and conversations with other users).[81]

In response, Zuckerberg issued an apology for the site's failure to include appropriate customizable privacy features. Since then, users have been able to control what types of information are shared automatically with friends. Users are now able to prevent user-set categories of friends from seeing updates about certain types of activities, including profile changes, Wall posts, and newly added friends.[82]

On February 23, 2010, Facebook was granted a patent[83] on certain aspects of its News Feed. The patent covers News Feeds in which links are provided so that one user can participate in the same activity of another user.[84] The patent may encourage Facebook to pursue action against websites that violate its patent, which may potentially include websites such as Twitter.[85]

One of the most popular applications on Facebook is the Photos application, where users can upload albums and photos.[86] Facebook allows users to upload an unlimited number of photos, compared with other image hosting services such as Photobucket and Flickr, which apply limits to the number of photos that a user is allowed to upload. During the first years, Facebook users were limited to 60 photos per album. As of May 2009, this limit has been increased to 200 photos per album.[87][88][89][90]

Privacy settings can be set for individual albums, limiting the groups of users that can see an album. For example, the privacy of an album can be set so that only the user's friends can see the album, while the privacy of another album can be set so that all Facebook users can see it. Another feature of the Photos application is the ability to "tag", or label, users in a photo. For instance, if a photo contains a user's friend, then the user can tag the friend in the photo. This sends a notification to the friend that they have been tagged, and provides them a link to see the photo.[91]

Facebook Notes was introduced on August 22, 2006, a blogging feature that allowed tags and embeddable images. Users were later able to import blogs from Xanga, LiveJournal, Blogger, and other blogging services.[37] During the week of April 7, 2008, Facebook released a Comet-based[92] instant messaging application called "Chat" to several networks,[93] which allows users to communicate with friends and is similar in functionality to desktop-based instant messengers.

Facebook launched Gifts on February 8, 2007, which allows users to send virtual gifts to their friends that appear on the recipient's profile. Gifts cost $1.00 each to purchase, and a personalized message can be attached to each gift.[94][95] On May 14, 2007, Facebook launched Marketplace, which lets users post free classified ads.[96] Marketplace has been compared to Craigslist by CNET, which points out that the major difference between the two is that listings posted by a user on Marketplace are seen only by users in the same network as that user, whereas listings posted on Craigslist can be seen by anyone.[97]

On July 20, 2008, Facebook introduced "Facebook Beta", a significant redesign of its user interface on selected networks. The Mini-Feed and Wall were consolidated, profiles were separated into tabbed sections, and an effort was made to create a "cleaner" look.[98] After initially giving users a choice to switch, Facebook began migrating all users to the new version beginning in September 2008.[99] On December 11, 2008, it was announced that Facebook was testing a simpler signup process.[100]

On June 13, 2009, Facebook introduced a "Usernames" feature, whereby pages can be linked with simpler URLs such as http://www.facebook.com/facebook as opposed to http://www.facebook.com/profile.php?id=20531316728.[101] Many new smartphones offer access to Facebook services through either their web-browsers or applications. An official Facebook application is available for the iPhone OS, the Android OS, and the WebOS. Nokia and Research In Motion both provide Facebook applications for their own mobile devices. More than 150 million active users access Facebook through mobile devices across 200 mobile operators in 60 countries.

On November 15, 2010, Facebook announced a new "Facebook Messages" service. In a media event that day, CEO Mark Zuckerberg said, "It's true that people will be able to have an @facebook.com email addresses, but it's not email". The launch of such a feature had been anticipated for some time before the announcement, with some calling it a "Gmail killer". The system, to be available to all of the website's users, combines text messaging, instant messaging, emails, and regular messages, and will include privacy settings similar to those of other Facebook services. Codenamed "Project Titan", Facebook Messages took 15 months to develop.[102][103]

In February 2011, Facebook began to use the hCalendar microformat to mark up events, and the hCard microformat for the events' venues, enabling the extraction of details to users' own calendar or mapping applications.[104]

Since April 2011 Facebook users have had the ability to make live voice calls via Facebook Chat, allowing users to chat with others from all over the world. This feature, which is provided free through T-Mobile's new Bobsled service, lets the user add voice to the current Facebook Chat as well as leave voice messages on Facebook.[105]
Reception

According to comScore, Facebook is the leading social networking site based on monthly unique visitors, having overtaken main competitor MySpace in April 2008.[106] ComScore reports that Facebook attracted 130 million unique visitors in May 2010, an increase of 8.6 million people.[107] According to Alexa, the website's ranking among all websites increased from 60th to 7th in worldwide traffic, from September 2006 to September 2007, and is currently 2nd.[108] Quantcast ranks the website 2nd in the U.S. in traffic,[109] and Compete.com ranks it 2nd in the U.S.[110] The website is the most popular for uploading photos, with 50 billion uploaded cumulatively.[111] In 2010, Sophos's "Security Threat Report 2010" polled over 500 firms, 60% of which responded that they believed that Facebook was the social network that posed the biggest threat to security, well ahead of MySpace, Twitter, and LinkedIn.[112]

Facebook is the most popular social networking site in several English-speaking countries, including Canada,[113] the United Kingdom,[114] and the United States.[115][116][117][118] In regional Internet markets, Facebook penetration is highest in North America (69 percent), followed by Middle East-Africa (67 percent), Latin America (58 percent), Europe (57 percent), and Asia-Pacific (17 percent).[119]

The website has won awards such as placement into the "Top 100 Classic Websites" by PC Magazine in 2007,[120] and winning the "People's Voice Award" from the Webby Awards in 2008.[121] In a 2006 study conducted by Student Monitor, a New Jersey-based company specializing in research concerning the college student market, Facebook was named the second most popular thing among undergraduates, tied with beer and only ranked lower than the iPod.[122]

On March 2010, Judge Richard Seeborg issued an order approving the class settlement in Lane v. Facebook, Inc., the class action lawsuit arising out of Facebook's Beacon program.

In 2010, Facebook won the Crunchie "Best Overall Startup Or Product" for the third year in a row[123] and was recognized as one of the "Hottest Silicon Valley Companies" by Lead411.[124] However, in a July 2010 survey performed by the American Customer Satisfaction Index, Facebook received a score of 64 out of 100, placing it in the bottom 5% of all private-sector companies in terms of customer satisfaction, alongside industries such as the IRS e-file system, airlines, and cable companies. The reasons why Facebook scored so poorly include privacy problems, frequent changes to the website's interface, the results returned by the News Feed, and spam.[125]

In December 2008, the Supreme Court of the Australian Capital Territory ruled that Facebook is a valid protocol to serve court notices to defendants. It is believed to be the world's first legal judgement that defines a summons posted on Facebook as legally binding.[126] In March 2009, the New Zealand High Court associate justice David Gendall allowed for the serving of legal papers on Craig Axe by the company Axe Market Garden via Facebook.[127][128] Employers (such as Virgin Atlantic Airways) have also used Facebook as a means to keep tabs on their employees and have even been known to fire them over posts they have made.[129]

By 2005, the use of Facebook had already become so ubiquitous that the generic verb "facebooking" had come into use to describe the process of browsing others' profiles or updating one's own.[130] In 2008, Collins English Dictionary declared "Facebook" as its new Word of the Year.[131] In December 2009, the New Oxford American Dictionary declared its word of the year to be the verb "unfriend", defined as "To remove someone as a 'friend' on a social networking site such as Facebook. As in, 'I decided to unfriend my roommate on Facebook after we had a fight.'"[132]

In April 2010, according to The New York Times, countries with the most Facebook users were the United States, the United Kingdom, and Indonesia.[133] Indonesia has become the country with the second largest number of Facebook users, after the United States, with 24 million users, or 10% of Indonesia's population.[134] Also in early 2010, Openbook was established, an avowed parody (and privacy advocacy) website[135] that enables text-based searches of those Wall posts that are available to "Everyone", i.e. to everyone on the Internet.

Writers for The Wall Street Journal found in 2010 that Facebook apps were transmitting identifying information to "dozens of advertising and Internet tracking companies". The apps used an HTTP referrer which exposed the user's identity and sometimes their friends'. Facebook said, "We have taken immediate action to disable all applications that violate our terms".[136]
Privacy

According to comScore, an internet marketing research company, Facebook collects as much data from its visitors as Google and Microsoft, but considerably less than Yahoo!.[137] In 2010, the security team began expanding its efforts to reduce the risks to users' privacy.[112] On November 6, 2007, Facebook launched Facebook Beacon, which was an ultimately failed attempt to advertise to friends of users using the knowledge of what purchases friends made.
Criticism
Main article: Criticism of Facebook

Facebook has met with controversies. It has been blocked intermittently in several countries including the People's Republic of China,[138] Vietnam,[139] Iran,[140] Uzbekistan,[141] Pakistan,[142] Syria,[143] and Bangladesh on different bases. For example, it was banned in many countries of the world on the basis of allowed content judged as anti-Islamic and containing religious discrimination. It has also been banned at many workplaces to prevent employees wasting their time on the site.[144] The privacy of Facebook users has also been an issue, and the safety of user accounts has been compromised several times. Facebook has settled a lawsuit regarding claims over source code and intellectual property.[145] In May 2011 emails were sent to journalists and bloggers making critical allegations about Google's privacy policies; however it was later discovered that the anti-Google campaign, conducted by PR giant Burson-Marsteller, was paid for by Facebook in what CNN referred to as "a new level skullduggery" and which Daily Beast called a "clumsy smear".[146]
Media impact

In April 2011, Facebook launched a new portal for marketers and creative agencies to help them develop brand promotions on Facebook.[147] The company began its push by inviting a select group of British advertising leaders to meet Facebook's top executives at an "influencers' summit" in February 2010. Facebook has now been involved in campaigns for True Blood, American Idol, and Top Gear.[148]
Social impact

Facebook has affected the social life and activity of people in various ways. It can reunite lost family members and friends. One such reunion was between John Watson and the daughter he had been searching for 20 years. They met after Watson found her facebook profile.[149] Another father-daughter reunion was between Tony Macnauton and Frances Simpson, who had not seen each other for nearly 48 years.[150]

Some studies have named Facebook as a source of problems in relationships. Several news stories have suggested that using Facebook causes divorce and infidelity, but the claims have been questioned and refuted by other commentators.[151][152]
Political impact
The stage at the Facebook – Saint Anselm College debates in 2008.
Wikinews has related news: Egyptian man names daughter 'Facebook'

Facebook's role in the American political process was demonstrated in January 2008, shortly before the New Hampshire primary, when Facebook teamed up with ABC and Saint Anselm College to allow users to give live feedback about the "back to back" January 5 Republican and Democratic debates.[153][154][155] Charles Gibson moderated both debates, held at the Dana Center for the Humanities at Saint Anselm College. Facebook users took part in debate groups organized around specific topics, register to vote, and message questions.[156]

Over 1,000,000 people installed the Facebook application 'US politics' in order to take part, and the application measured users' responses to specific comments made by the debating candidates.[157] This debate showed the broader community what many young students had already experienced: Facebook was an extremely popular and powerful new way to interact and voice opinions. An article by Michelle Sullivan of Uwire.com illustrates how the "facebook effect" has affected youth voting rates, support by youth of political candidates, and general involvement by the youth population in the 2008 election.[158]

In February 2008, a Facebook group called "One Million Voices Against FARC" organized an event in which hundreds of thousands of Colombians marched in protest against the Revolutionary Armed Forces of Colombia, better known as the FARC (from the group's Spanish name).[159] In August 2010, one of North Korea's official government websites and the official news agency of the country, Uriminzokkiri, joined Facebook.[160]

In 2010 an English director of public health, whose staff was researching Syphilis, linked and attributed a rise in Syphilis cases in areas of Britain to Facebook. The reports of this research were rebuked by Facebook as "ignoring the difference between correlation and causation".[161]
Media
Wikinews has news involving Facebook:

* Bloggers investigate social networking websites
* News services and World Wide Web companies increase Persian language services after Iranian presidential election

* At age 102, Ivy Bean of Bradford, England joined Facebook in 2008, making her one of the oldest people ever on Facebook. An inspiration to other residents of the care home in which she lived,[162] she quickly became more widely known and several fan pages were made in her honor. She visited Prime Minister Gordon Brown and his wife, Sarah, in Downing Street early in 2010.[163] Some time after creating her Facebook page, Bean also joined Twitter, when she passed the maximum number of friends allowed by Facebook. She became the oldest person to ever use the Twitter website. At the time of her death in July 2010, she had 4,962 friends on Facebook and more than 56,000 followers on Twitter. Her death was widely reported in the media and she received tributes from several notable media personalities.[164]
* "FriendFace", a December 2008 episode of the British sitcom, The IT Crowd, parodied Facebook and social networking sites in general.[165]
* American author Ben Mezrich published a book in July 2009 about Mark Zuckerberg and the founding of Facebook, titled The Accidental Billionaires: The Founding of Facebook, A Tale of Sex, Money, Genius, and Betrayal.[166]
* In response to the Everybody Draw Mohammed Day controversy and the ban of the website in Pakistan, an Islamic version of the website was created, called MillatFacebook.[167]
* "You Have 0 Friends", an April 2010 episode of the American animated comedy series, South Park, parodied Facebook.[168]
* The Social Network, a drama film directed by David Fincher about the founding of Facebook, was released October 1, 2010.[169] The film features an ensemble cast consisting of Jesse Eisenberg as Mark Zuckerberg, Andrew Garfield as Eduardo Saverin, Justin Timberlake as Sean Parker, and Armie Hammer as Cameron and Tyler Winklevoss. The film was written by Aaron Sorkin and adapted from Ben Mezrich's 2009 book. The film was distributed by Columbia Pictures. No staff members of Facebook, including Zuckerberg, were involved with the project. However, one of Facebook's co-founders, Eduardo Saverin, was a consultant for Mezrich's book. Mark Zuckerberg has said that The Social Network is inaccurate.[170]
* On February 22, 2011, an Egyptian baby was named "Facebook" to commemorate the vital role Facebook and other social media played in Egypt's revolution.[171]
* On May 16, 2011, an Israeli couple named their daughter after the Facebook "like" feature. They explained that it wasn't to advertise for Facebook, but because they fancied the meaning behind the word.[172][173]

See also
San Francisco Bay Area portal
Companies portal
Internet portal

* Ambient awareness
* Facebook stalking
* List of social networking websites
* List of virtual communities with more than 100 million users
* Social media
* Facebook users

Notes

1. ^ An "active user" is defined by Facebook as a user who has visited the website in the last 30 days.
2. ^ "Monthly growth" is the average percentage growth rate at which the total number of active users grows each month over the specified period.
3. ^ This value is from an investment document. The date is from when the document was revealed to the public, not the actual date that the website reached this many users.

References

1. ^ a b Eldon, Eric (December 18, 2008). "2008 Growth Puts Facebook In Better Position to Make Money". VentureBeat (San Francisco). http://venturebeat.com/2008/12/18/2008-growth-puts-facebook-in-better-position-to-make-money/. Retrieved December 19, 2008.
2. ^ a b Womack, Brian (December 16, 2010). "Facebook 2010 Sales Said Likely to Reach $2 Billion, More Than Estimated". Bloomberg (New York). http://www.bloomberg.com/news/2010-12-16/facebook-sales-said-likely-to-reach-2-billion-this-year-beating-target.html. Retrieved January 5, 2011.
3. ^ "Press Info", Facebook. Retrieved May 27, 2010.
4. ^ Facebook.com – Traffic Details from Alexa. Alexa Internet. http://www.alexa.com/siteinfo/facebook.com. Retrieved February 7, 2011.
5. ^ a b "Goldman to clients: Facebook has 600 million users". MSNBC. January 5, 2011. http://www.msnbc.msn.com/id/40929239/ns/technology_and_science-tech_and_gadgets/. Retrieved July January 15, 2011.
6. ^ a b "Facebook Has More Than 600 Million Users, Goldman Tells Clients". Business Insider. January 5, 2011. http://www.businessinsider.com/facebook-has-more-than-600-million-users-goldman-tells-clients-2011-1. Retrieved January 15, 2011.
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Further reading

* Kirkpatrick, David, "Why Facebook matters: It's not just for arranging dates. And it's not just another social network. Facebook offers sophisticated tools for maintaining social relationships", Fortune magazine, October 6, 2006

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v · d · eFacebook
Overview
History · Timeline · Acquisitions · Criticism · Use in investigations
Website
Beacon · Features · Platform
People
Founders

Mark Zuckerberg (24% equity) · Chris Hughes (1%) · Dustin Moskovitz (6%) · Eduardo Saverin (5%)
Board

Mark Zuckerberg · Marc Andreessen · Jim Breyer · Don Graham · Peter Thiel
Executives

Current

Mark Zuckerberg (CEO) · Chris Cox (VP of Product) · Sheryl Sandberg (COO) · Elliot Schrage (VP of Global Communications, Marketing and Public Policy) · Mike Schroepfer (VP of Engineering) · Bret Taylor (CTO) · Ted Ullyot (VP and General Counsel)
Former

Sean Parker (President) · Owen Van Natta (COO) · Gideon Yu (CFO) · Adam D'Angelo (CTO) · Chris Kelly (Chief Privacy Officer) · Matt Cohler (VP of Product Management)
Notable
employees

Current

Andrei Alexandrescu (research scientist) · Randi Zuckerberg (marketing director)
Former

Charlie Cheever (programmer) · Andrew McCollum (graphic artist)
Software
HipHop for PHP · Apache Cassandra · Apache Thrift · Scribe (log server) · Apache Hive · FQL
Other
Activity stream · f8 conference · Social graph · The Facebook Effect · The Accidental Billionaires · The Social Network · Wirehog
v · d · eMicroblogging
Websites
Blauk · Facebook • Google Buzz • Identi.ca • Jaiku • Viadeo • LinkedIn • MySpace • NotePub • Plurk • Posterous • Pownce (closed) • Qaiku • Sina Weibo • Tencent Weibo • Tumblr • Twitter • Yahoo! Meme • XING
Platforms
Diaspora (in development) • StatusNet · OpenMicroBlogging
Features
Reblogging · Activity stream · Lifestreaming
v · d · eSocial network services
Websites
Personal websites

Badoo · Bebo · Cyworld · Facebook · FriendFeed · Friendster · Hi5 · ibibo · Jaiku · Myspace · Netlog · Orkut · StudiVZ · Tagged · Tribe.net · Tuenti · Twitter · Vkontakte · Whispurr
Professional websites

Hub Culture · LinkedIn · Plaxo · Viadeo · XING
Defunct websites

SixDegrees.com
White-label services

Ning · Wall.fm
Tools
Facebook Connect · OpenSocial · Social network analysis software · Diaspora (software)
General
Comparison of software · Online identity · User profile · Virtual community · 100+ million users
Applications
Social network advertising · Social network hosting service · Groups · Online dating service (comparison) · Internet petitions · Reblogging · Mobile · Polling · Activity stream
Implications
User gender difference · Use in investigations
Related concepts
Small world experiment · Small-world network · Social network · Social network service
Good article
Retrieved from "http://en.wikipedia.org/wiki/Facebook"
Categories: Facebook | Android software | BlackBerry software | Blog hosting services | Blog software | Companies based in Palo Alto, California | Global internet community | Internet properties established in 2004 | IOS software | Privately held companies of the United States | Social information processing | Social media | Social networking services | Student culture | Symbian software | Web 2.0 | 2004 establishments in the United States | Photo sharing | Online gaming services | Websites which mirror Wikipedia
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