This course examines how to innovate in a Web 2.0 world. Unlike the Web 1.0 that preceded it, Web 2.0 emphasizes collaboration, openness, and participation. In a Web 2.0 world, the difference between information producers and consumers has essentially disappeared, turning the Web (finally, we should add) into a read/write medium. We will explore new ways that users can collaborate through blogs and wikis, and by recombining information into mashups. We will examine the implications of open communication between users (companies and individuals alike), and study the new business models enabled by user participation.