Mark Zuckerberg (born on May 14, 1984) is the founder of Facebook, a major social networking site. Nicknamed Bill Gates #2, Zuckerberg dropped out of Harvard's computer sciences and psychology programs and founded Facebook with classmate co-founders Dustin Moskovitz, Eduardo Saverin, and Chris Hughes. Zuckerberg became the world's youngest billionaire in 2008.

He was named Time Magazine's Person of the Year 2010.