The document defines Web 2.0 as focusing on harnessing collective intelligence through user-generated content and participation. It discusses how new tools, a connected user base, and low barriers to entry have led to new players, opportunities, and business models centered around user participation, communities, and outsourcing. The future of Web 2.0 may include new centers of activity beyond websites, as well as advances in mobile technology, 3D environments, and the semantic web.