What is Web 2.0? At one time, Web sites were isolated information "silos", all content and no functionality. Today, the next generation of Web sites gives power to the end-user, providing visitors with a new level of customization, interaction, and participation. What can Web 2.0 tools offer educators? This book provides a comprehensive overview of the emerging Web 2.0 technologies and their use in the classroom and in professional development. Topics include blogging, wikis, podcasting, and more. Also included are a discussion of Web 2.0 safety and security issues and a look toward the future of the Web 2.0 movement. From back cover.