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Joost, former website, launched in 2007, that provided advertiser-supported streaming videos over the Internet of television shows and films, using Adobe Systems Incorporated’s Flash video player. Access to Joost was generally limited to viewers in the United States because of international licensing restrictions. Joost was launched by Niklas Zennström of Sweden and Janus Friis of Denmark, using a version of the peer-to-peer (P2P) technology that they had developed for two of their earlier business ventures—Kazaa,...