This document provides an introduction to using Web 2.0 tools in the classroom. It discusses how these tools can be used to build digital literacy, encourage collaboration, support communication, and provide engaging learning opportunities. Specific Web 2.0 tools are then described, including collaborative tools like wikis, Padlet, and Voicethread. Other sections explain how tools like word clouds, avatars, and multimedia creators can be utilized. Challenges of implementing Web 2.0 tools and some potential classroom applications are also outlined.