For the first time, the three wealthiest people in the world are all tech billionaires, according to Bloomberg's Billionaires Index. Facebook's Mark Zuckerberg is worth $81.6 billion–about $373 million more than Berkshire Hathaway's CEO Warren Buffett, after Facebook's stock rose 2.4% on Friday. Now Zuckerberg only trails Amazon founder Jeff Bezos and Microsoft founder Bill Gates in wealth, per Bloomberg.
