Marissa Mayer's predecessors at Yahoo

The company has gone through a series of CEOs - four in the past five years, not counting interim chiefs. Here are the execs whom Mayer follows.

Tim Koogle

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.


  @FortuneMagazine - Last updated October 11 2012 08:52 AM ET
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Fortune's 40 Under 40

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.

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