Facebook (stylized
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. 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 USA to help students get to know each other
better. Facebook allows anyone who declares themselves 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.
[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.
A January 2009
Compete.com study ranked Facebook as the most used
social networking service by worldwide monthly active users, followed by
MySpace.
[8] Entertainment Weekly
put it 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?"
[9] Quantcast estimates Facebook has 135.1 million monthly unique U.S. visitors in October 2010.
[10] According to
Social Media Today, in April 2010 an estimated 41.6% of the U.S. population had a Facebook account.
[11]click this link so you can get some info about the website
http://www.facebook.com/help/?ref=pf
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