Facebook founder MARK ZUCKERBERG!!!! He has overtaken WARREN BUFFETT to become the world's third-richest person. He's now worth $81.6 billion, about $373 million more than Buffett. (It's crazy that $373 million is just one step up.)
Zuckerberg only trails Amazon's JEFF BEZOS with $142 billion and Microsoft founder BILL GATES with $94.2 billion.
And now for the first time the three richest people all made their fortunes from technology.
Zuckerberg just passed Buffett on Friday, when Facebook shares climbed 2.4%, according to the Bloomberg Billionaires Index.