Facebook is a social network service and website which was launched in February 2004. According to statistics of 2010, Facebook has more than 500 million active users, which is about one person for every fourteen persons in the world. Users can create a profile, update their personal info, add other users as friends, have chat with them online and they can get automatic notifications when they update their profile. Users can also play different games and join different platforms and communities of their interest.
Facebook was founded by Mark Zuckerberg with his college roommates and fellow computer science students Eduardo Saverin, Dustin Moskovitz and Chris Hughes. At first membership was only limited to students of Harvard only but later on it was expended and now a days every one above 13 can register an account on Facebook.
