Jerry Yang, co-founder of Yahoo, was tapped to run the company in mid-2007. His tenure was marred by one bad decision after another. In his time as the No. 1, he refused to sell to Steve Ballmer and Microsoft, even though they offered a substantial premium over the stock price at the time. Yang also tried to garner an ad revenue deal with Google that was delayed by federal antitrust regulators before Google finally walked away from the deal. Fresh in the wake of the destroyed ad deal, Yang went on stage and appealed to Microsoft to purchase the company at the Web 2.0 Summit. Shortly after his appearance on stage, Yang blogged his resignation as CEO, but said he will stay on with the company as "Chief Yahoo."

Next Slide