Jeff Bezos - Fortune - Billionaire list

Jeff Bezos
Jeffrey Preston Bezos (born January 12, 1964) is the president, chief executive officer, and chairman of the board of Amazon.com. Bezos, a Princeton University graduate, worked as a financial analyst for D.E. Shaw before founding Amazon.com in 1994. He was Time magazine's Person of the Year in 1999.

Fortune
$4.1 billion as of 2005.