With 1Billion Users, Facebook Turns Eight

Facebook, the world's most popular social networking site, has turned eighth.

With an estimated 845 million active subscribers, the social networking giant still continues to grow, since its launch on February 4, 2004 and is most likely to have 1 billion users by August this year.

While, the company CEO Mark Zuckerberg is best known as the man who built Facebook, the company has three other co-founders, all college roommates and fellow students of Harvard University; Eduardo Saverin, Dustin Moskovitz, and Chris Hughes.

The four initially built the service exclusively for Harvard students, but it was soon expanded to other colleges and eventually added support for students at various other universities.