Facebook CEO and founder Mark Zuckerberg .
#4. Microsoft Overpays for Facebook
Here we go again in technology land. Microsoft invests $240 million for a 1.6% stake in Facebook, plus the right to broker the social networking site's international ads. The deal gives Facebook an implied value of $15 billion, for a company expected to earn just $30 million in 2007 but is nonetheless considered the model website of the future. Er, wasn't that AOL a couple of years ago? Are we in 1999 again, or is Microsoft as prescient as it says it is?