Co-founders, Joost and Skype
Ages: 41 (Zennstrom), 30 (Friis)
Call them the Disruptive Duo. After first rocking the music industry by unleashing the technology behind the music-sharing service Kazaa, and then roiling the telephone industry by creating Skype, Friis and Zennstrom are now targeting the TV industry with Joost. It's a free (and legal), full-screen, peer-to-peer TV network on your laptop, with 150 channels and growing. In May, Joost raised $45 million from CBS, Viacom, Sequoia Capital and Index Ventures.Ages: 41 (Zennstrom), 30 (Friis)
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