The document discusses how teachers can use web 2.0 tools and podcasting in their classrooms. It provides examples of popular web 2.0 sites like blogs, wikis, and Flickr that encourage user participation and collaboration. The document also explains what podcasting is and how teachers can create podcasts using tools like Audacity or Garageband. Podcasts allow for "anytime, anywhere" learning and can be used to reinforce curriculum concepts. Several hosting options are mentioned for sharing podcasts with students.