This document discusses the shift from Web 1.0 to Web 2.0 and Learning 1.0 to Learning 2.0. Web 2.0 is characterized by user-generated content, interconnectivity of applications, and meaningful online communities and collaboration. Learning 2.0 leverages various Web 2.0 technologies like blogs, wikis, podcasting, social bookmarking, video and photo sharing to create interactive content and encourage participation and dynamic learning. Many free and open Web 2.0 tools are presented that can enhance online learning through collaborative authoring, multimedia content creation and sharing, and connecting learners.