Jeff Cheung provides feedback on using web 2.0 tools for a course on their applications. He recommends using 際際滷share to share his opinions on the course. He notes that most tools are free and can be used without IT support. Web 2.0 tools support multimedia, teaching applications, and encourage feedback and sharing. Students enjoy learning with these tools, which Jeff has used in his work with tools like Xanga, 際際滷share, and Scribd. He provides comparisons of different tools and recommends some for specific uses.