Fountain of Youth: The Under 30 Hall of Fame

Photograph Courtesy Jawed Karim
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Jawed Karim, Chat Hurley & Steve Chen, YouTube

These three former PayPal employees started YouTube, the Internet's most popular video-sharing site, in February 2005, after eBay's acquisition of PayPal netted Karim a few million dollars. A year and a half later, Google acquired YouTube for a deal worth $1.65 billion in stock.