Well, I signed up for a free wikispace at wikispaces.com and began to train my students how to use wikispaces. I did a simple project -- I gave my computer science students six words to define using resources on the net so that they could understand the emerging concept of Web 2.0. I split them into teams of 2-3 students and gave them each a word to investigate. You can see our space at http://westwood.wikispaces.com/Web+2.0