Web 2.0 refers to a second generation of web development that facilitates sharing and collaboration on the internet. It is characterized by dynamic and user-generated content as well as easier usability. Some key features of Web 2.0 include searching, authoring, linking, tagging, commenting, bookmarking, blogging, podcasting, and signals. Web 2.0 tools have various advantages for education by making learning interactive, creative, easy to use, and allowing students to generate, manipulate, collaborate on and share learning materials from anywhere at any time. Popular educational Web 2.0 tools highlighted in the document include Hot Potatoes, PTable, and TeacherTube.