Thanks to a surge in Amazon.com Inc. shares Thursday morning,<br /> Jeff Bezos has become the world’s richest person. Bezos now has a net worth of $90.5 billion, The Amazon founder surpassed Microsoft's co-founder Bill Gates, who held the top spot since May 2013, according to Bloomberg. In today's earnings report, Amazon.com is expected to see a quarterly revenue increase of about 22% In addition to running Amazon, Bezos also owns Blue Origin, a space rocket business, and the Washington Post.