These are the top five sites I like most for use in my classroom now.
1. Twitter: http://twitter.com/
2. Googledocs: http://docs.google.com/
3. Tagul: http://tagul.com/
4. JeopardyLabs: http://jeopardylabs.com/
5. Snagit: http://www.techsmith.com/screen-capture.asp
