If you are looking for more ideas on how to incorporate useful websites into your teaching, look no further than Discovery Education's Web 2.0 Tools website. This site has some awesome content! They have put together a number of web 2.0 resources into different categories with direct links to those sites. Also, they have created some great introductory videos about different web 2.0 resources. They are very entertaining and creatively put together. I encourage you to check them out and let me know if they are useful to you as well as how you've used them in your class! I look forward to your comments!