Here are  links to some more Web 2.o tools that you may find useful in helping  students study and understand.

Jeopardy Labs is a free site where you can make your own Jeopardy game or you can use one made by others.

Technorati is a blog search.  Student may use this to search topics for reports or interest.  They would need to use their evaluation skills to figure out if the blog’s author is an authority on the subject or at least verify information presented through other reliable sources.

 Wikipedia is a good source for gathering background information. Used as a starting point, Wikipedia can be useful in learning keywords about topics, relative time period, etc. Just as with Technorati, Wikipedia sources should be verified  for authority and accuracy in reporting information.

Bubbl.us is a free brain storming and mind-mapping application.  A video tutorials for how to us Bubbl.us are available on Teachweb2 on Wikispaces.