Turntable.fm founder Billy Chasen announced that the service is officially closing, “ending one of the most compelling experiments in music discovery to ever hit the Web,” suggests The Verge. Chasen attempted to play by the rules, paying every time a song was streamed, which eventually proved to be too expensive. He believes that the music industry is stifling innovation and digital startups. For his next venture, Chasen is going social with Ketchup, a free app he launched last month. Continue reading Billy Chasen Shutters Turntable.fm, Launches New Social App