25 Visionaries Who Created Empires From Virtually Nothing

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16. Niklas Zennström

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This Swedish entreprenuer had no idea what a wild ride he was in for when he raised the curtain on his biggest creation. As the co-founder of KaZaA Media Desktop, Zennstrom found himself in the crosshairs of the recording and film industry after his program became the most popular way of trading multimedia files over the Internet. The scrutiny and lawsuit threats became so intense that Zennstrom left the United States and ultimately sold KaZaA to another company. But Zennstrom wasn’t done; just a year later, he was hard at work creating Skype, an Internet telephony service based on the same P2P technology used for KaZaA. It didn’t take long for Skype to catch on, prompting auction giant eBay to fork over a whopping $2.6 billion to snap up the young company.

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16. Niklas Zennström