Facebook.

FACEBOOK

Facebook is a social network service  launched in February 2004 that is operated and privately owned by Facebook, as of July 2010 Facebook has more than 500 million active users, which is about one person for every fourteen in the world.

Users 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, 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 US with the intention of helping students to get to know each other better.

 Facebook allows anyone who declares them to be at least 13 years old to become a registered user 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. 

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.

My Facebook Status: http://www.facebook.com/profile.php?id=1034373656

Type	Private
Founded	Cambridge, Massachusetts(2004)
Founder	Mark Zuckerberg Chris Hughes Dustin Moskovitz Eduardo Saverin
Headquarters	Palo Alto, California, U.S. (main headquarters; serves the Americas) Dublin, Ireland (headquarters for Europe, Africa, Middle East) Seoul, South Korea (headquarters for Asia) Wellington, New Zealand(headquarters for Oceania),Hyderabad, India(Headquarters for South Asia)
Area served	Worldwide
Key people	Mark Zuckerberg (CEO) Chris Cox (VP of Product) Sheryl Sandberg (COO)
Revenue	US$800 million (2009 est.)
Employees	1700+ (2010)
Website	facebook.com
Alexa rank	2 (November 2010)
Type of site	Social network service
Advertising	Banner ads, referral marketing, Casual games
Registration	Required
Users	500 million (until  July 2010)
Available in	Multilingual
Launched	February 4, 2004

Facebook is a social networking website intended to connect friends, family, and business associates. It is the largest of the networking sites, with the runner up being My Space. It began as a college networking website and has expanded to include anyone and everyone.en.wikipedia.org/wiki/Facebook

My Facebook Status: http://www.facebook.com/profile.php?id=1034373656