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. Zuckerberg is the chairman and chief executive of Facebook, Inc. His PERSONAL wealth, as of March 2015, is estimated to be $35.1 billion. Zuckerberg RECEIVES a one-dollar salary as CEO of Facebook.