This document discusses using social networking sites and Web 2.0 tools in language classrooms. It defines Web 2.0 as technologies that allow for mass participation and collective intelligence to create value. Common Web 2.0 tools mentioned are blogs, wikis, social bookmarking, photos/videos, and presentations. Blogs in particular are discussed as having benefits for students like access to notes and feedback, and for teachers to easily organize materials. Setting up blogs and using them in class is outlined in steps.