20 Web 2.0 Tools for Teachers is the title of a nice slide presentation created by Simon Ward. Ward’s presentation contains some very familiar sites like Delicious and also includes some lesser-known sites. In fact, there were a few sites in the slide presentation that I don’t recall ever seeing before. Take a few minutes to go through the presentation and you might find a new-to-you tool too.
http://www.freetech4teachers.com/2010/05/20-web-20-tools-for-teachers.html