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Zennström started his professional career
Zennström started his professional career in 1993 at the European telecom operator Tele2. -
kazaa
In 2001 Zennström and Friis co-founded Kazaa, the peer-to-peer file sharing application. -
skype
Zennström and Friis' most notable success to date is Skype, a telephony company based on peer-to-peer principles. -
joost
After the sale of Skype, Zennström and Friis went on in 2007 to launch Joost, an online video distribution service -
pardon skype
In 2009 Zennström was part of the investment consortium that bought Skype from eBay and has now re-joined the Skype board.
