The document discusses the benefits of using wikis and web 2.0 tools in education including collaboration, engagement, feedback, revisions, and collective intelligence. It notes that wikis allow students to communicate outside of class, keep up when absent, and review each other's work. When used at their best, wikis can support exploratory projects, content sharing, digital storytelling, and construct knowledge through reflection and feedback. Some challenges mentioned are deciding how to change activities and measuring learning outcomes.