This document summarizes 20 popular Web 2.0 tools for teachers as chosen by the coordinator of educational technology at Dawson College. It lists each tool's website along with a brief description. The tools include Google Docs for real-time document editing, Dropbox for file sharing, Weebly for website creation, and tools for presentations, word clouds, avatars, mind mapping, screen sharing, and more. It concludes with contact information for questions.