This document provides an overview of Web 2.0 tools and resources. It discusses various tools like blogs, social networking sites, wikis, photo and video sharing sites, social bookmarking, RSS feeds, and microblogging. For each tool, it describes what it is, who is using it, how it works, why it is significant, potential downsides, and where it may be headed. The goal is to help organizations determine which Web 2.0 tools are right for them and how to leverage these tools for marketing, publicity, and keeping up with new developments.