Mark Elliot Zuckerberg (born May 14, 1984) is an American computer programmer and Internet entrepreneur. He is best known as one of five co-founders of the social networking website Facebook. As of April 2013, Zuckerberg is the chairman and chief executive of Facebook, Inc.[6][7] and his personal wealth, as of July 2014, is estimated to be $33.1 billion.[5] Mark Zuckerberg receives a one-dollar salary as CEO of Facebook.[4]