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Facebook

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This article is about the website. For the photographic directory, see face book. For the corporation, see Facebook, Inc..

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Facebook, Inc.

Facebook.svg

Type Public

Traded as NASDAQ: FB

Foundation date Cambridge, Massachusetts, U.S. (2004)

Headquarters Menlo Park, California, U.S.

Area served United States (2004–05)

Worldwide (2005–present)

Founder(s)

Mark Zuckerberg

Eduardo Saverin

Andrew McCollum

Dustin Moskovitz

Chris Hughes

Key people Mark Zuckerberg

(Chairman and CEO)

Sheryl Sandberg

(COO)

Industry Internet

Revenue Increase $5.1 billion (2012)[1]

Operating income Decrease US$ 538 million (2012)[2]

Net income Increase US$ 53 million (2012)[2]

Total assets Increase US$ 15.10 billion (2012)[2]

Total equity Increase US$ 11.75 billion (2012)[2]

Employees 4,900 (March,2013)[3]

Subsidiaries Instagram

Website facebook.com

Written in C++ and PHP[4]

Alexa rank Steady 2 (May 2013)[5]

Type of site Social networking service

Registration Required

Users 1.11 billion (active March 2013)[6]

Available in Multilingual (70)

Launched February 4, 2004

Current status Active

[show]Screenshot

Facebook History

Timeline

Statistics

Acquisitions

Criticism

Features

Facebook on the Ad-tech 2010

Facebook is an online social networking service, whose name stems from the colloquial name for the book given to students at the start of the academic year by some university administrations in the United States to help students get to know each other.[7] It was founded in February 2004 by Mark Zuckerberg with his college roommates and fellow Harvard University students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes.[8] 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 eventually to anyone aged 13 and over. Facebook now allows any users who declare themselves to be at least 13 years old to become registered users of the site.[9]

Users must register before using the site, after which they may create a personal profile, add other users as friends, and exchange messages, including automatic notifications when they update their profile. Additionally, users may join common-interest user groups, organized by workplace,

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