Facebook

Facebook is the world's most popular social networking page. Its popularity spread like wildfire when mark Zuckerberg along with his classmates Eduardo Saverin, Dustin Moskovitz, and Chris Hughes set up Facebook.

         It was launched in 2004 as 'The Facebook' and the access was restricted to Harvard students. The website allowed students to rate the photographs of other students. Students who signed up for the service could post photographs themselves and personal information about their lives. It's popularity increased; within 24 hours, 1,200 Harvard students signed up, and in a month's time, over half of the undergraduate population had a profile.

The network soon extended to other universities and high schools in the US and later to the UK. In 2005, it was renamed as Facebook and a year later, it went beyond educational institutions. Anybody who was thirteen years of age with a registered email could create an account on Facebook.