This document discusses how Web 2.0 technologies can promote collaboration in classrooms and beyond. It defines Web 2.0 as focused on collaboration and sharing information online. It provides examples of tools for online collaboration between teachers and students, or students alone, including Google Docs, Edmodo, wikis and blogs. It also lists benefits of online collaboration, such as promoting critical thinking. The document offers tips for integrating technology successfully and emphasizes that technology should not replace teachers, but enhance educational opportunities.