This document provides an overview of Web 2.0 tools and resources that can be used in K-8 classrooms. It discusses what Web 2.0 is and how it enables collaboration and user-generated content. Several free Web 2.0 tools are described, including blogs, wikis, podcasts, video sharing, and presentation tools. Examples are given of different ways these tools have been used for class websites, student projects, research, and communication. Teachers are encouraged to experiment with various Web 2.0 resources and screencast tutorials on how to use them.