Mark Zukerberg's networth goes down

Mark Zuckerberg bragging rights as one of the greatest social networking tech has been affected by Facebook's sinking stock share. As reported by Bloomberg, Zuckerberg's worth dropped by $423 million yesterday. His fortune is now figured to be $10.2 billion, about $400 million less than James Gooodnight, co-founder of software maker SAS Institute. The slip means Zuck is now out of the top 10 list of the richest tech titans, with Goodnight taking his place. (No. 1 is Bill Gates, at $62 billion.)