Accel Partners: $8 Billion
Dustin Moskovitz: $7 Billion
Facebook Cofounder Dustin Moskovitz, 27, was the social network's first chief technology officer and vice president of engineering, overseeing the major architecture of the site and the company's mobile strategy and development.
Moskovitz announced in October 2008 that he was leaving Facebook to form a new company called Asana, which designs software to improve the way people collaborate in groups and manage projects. His 7 percent share in Facebook could make him a cool $7 billion richer.