Open Courseware and Web 2.0 Learning Tools

The Online Education Database is an excellent resource for online learning. Yesterday, they posted "Take Any College Class for Free: 236 Open Courseware Collections, Podcasts, and Videos". This page also has a link to their Top 100 Open Courseware Projects, The Top 25 Web 2.0 Apps to Help You Learn, and The Top 25 Web 2.0 Apps to Help a Student's or Professor's Productivity.