Mark Zuckerberg , the 23 years old founder of social networking site facebook. Is the youngest ever self made billionaire according to an annuall list published by the Forbes magazine. "He is the youngest billionaire in the world right now and we also believe thathe is the youngest self made billionaire in history." said the magazine's associate editor Metthew Miller, unveiling this years super rich list. The magazine put the former harvard's students personal wealth at 1.5 billion dollars, based on what it said was conservative valuation of 5 billion dollars for facebook and Zuckerberg's estimated 30 percent stake. It played down speculation that the site could be worth as much as 15 billion dollars, which was based on microsoftpaying 240 million dollars for a 1.6 percent stake in the company last year. "would it really fetch that much today? Some analystic and a few fb investors- doubt it." the magazine said. It said its based valuation onFBs estimated annual sales of 150 million dollars. Go to below Url to know more about Mark Zuckerberg> http://en.m.wikipedia.org/wiki/mark_zuckerberg To know more about facebook site > http://en.m.wikipedia.org/wiki/facebook Or visit his facebook profile> http://facebook.com/markzuckerberg