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Screenshot
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| Type of business | Public |
|---|---|
Type of site
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Social networking service |
| Available in | Multilingual (140) |
| Traded as | |
| Founded | February 4, 2004 |
| Headquarters | Menlo Park, California, United States of America |
| Coordinates | 37.4848°N 122.1484°WCoordinates: 37.4848°N 122.1484°W |
| Area served | United States (2004–2005) Worldwide, except blocking countries (2005–present) |
| Founder(s) | |
| Key people | Mark Zuckerberg (Chairman and CEO) Sheryl Sandberg (COO) |
| Industry | Internet |
| Revenue |  US$40.653 billion (2017)[1] |
| Operating income | US$20.203 billion (2017)[1] |
| Net income | US$15.934 billion (2017)[1] |
| Total assets | US$84.524 billion (2017)[1] |
| Total equity | US$74.347 billion (2017)[1] |
| Employees | 25,105 (December 31, 2017)[2] |
| Subsidiaries | Instagram Messenger Oculus VR tbh Watch |
| Website | www www |
| Alexa rank |  3 (January 2018)[3] |
| Registration | Required |
| Users | 2.2 billion monthly active users (January 2018) |
| Current status | Active |
| Written in | C++, PHP (as HHVM),[4] D[5] |
Facebook is an American online social media and social networking service company based in Menlo Park, California. Its website was launched on February 4, 2004, by Mark Zuckerberg, along with fellow Harvard College students and roommates Eduardo Saverin, Andrew McCollum, Dustin Moskovitz, and Chris Hughes.The founders initially limited the website's membership to Harvard students. Later they expanded it to higher education institutions in the Boston area, the Ivy League schools, and Stanford University. Facebook gradually added support for students at various other universities, and eventually to high school students. Since 2006, anyone who claims to be at least 13 years old has been allowed to become a registered user of Facebook, though variations exist in this requirement, depending on local laws. The name comes from the face book directories often given to American university students. Facebook held its initial public offering (IPO) in February 2012, and began selling stock to the public three months later, reaching an original peak market capitalization of $104 billion, a new record. Facebook makes most of its revenue from advertisements that appear onscreen.
Zuckerberg wrote a program called "Facemash" in 2003 while attending Harvard University as a sophomore (second year student). 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".[7] Facemash attracted 450 visitors and 22,000 photo-views in its first four hours online.[8] The Facemash site was quickly forwarded to several campus group list-servers, but was shut down a few days later by the Harvard administration. Zuckerberg faced expulsion and was charged by the administration with breach of security, violating copyrights, and violating individual privacy. Ultimately, the charges were dropped.[7] Zuckerberg expanded on this initial project that semester by creating a social study tool ahead of an art history final exam. He uploaded all art images to a website, each of which was featured with a corresponding comments section, then shared the site with his classmates, and people started sharing notes
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