Facebook

Facebook the social networking site was founded by Mark Zuckerberg, Eduaro Saverin, Dustin Moskovitz, and Chris Huges in 2004. The site took 10 months to hit the one million mark and is now on a run to hit the one billion user mark by August 2012. The growth shows that people have a growing urge to stay connected with their peers. The site collaborates with several other companies to provide a platform to reach a huge market.

The company had raised $1.5 million in funding from Goldman Sachs, $500 million in direct investment from Goldman Sachs and Digital Sky Technologies in January 2011. It turned down a $1 billion deal by Yahoo! and now plans to go public with an IPO by the mid of 2012.