Facebook Founder Is Now Fourth Richest In World

Facebook founder Mark Zuckerberg is now the fourth-richest person in the world.

The 31-year-old surpassed Amazon founder Jeff Bezos yesterday on an index that tracks the fortunes of the super-wealthy.

Zuckerberg is now worth 50-billion-dollars.

A drop in Amazon stock prices has left Bezos with a mere 49-billion-dollars.

Facebook is the fourth-most valuable company, eclipsed only by Google, Apple and Microsoft.  {Metro Networks Inc.}