March 1995 to May 2001
Koogle was Yahoo's first CEO, shepherding the company from startup to web giant. He stepped down when web ad revenue started to dry up and the dotcom bubble burst.
Who are 2012's young business stars? We've got the CEO of a blue-chip beer brand, an airline CEO who just placed the largest order in commercial aviation history, and Warren Buffett's new prodigy, among the Silicon Valley hotshots and others.