Wikis

This was a really helpful tool to learn about. I've always wondered how wikis work. It doesn't seem hard to use at all. I'm surprised! I'd like to try using this with teachers and students on class projects or maybe create a book review/comment wiki for students to share thoughts about books they've read. I wonder how well it will work with junior high students? Is there a way to keep them from erasing other people's comments? I can picture some messing around with this. But if there's a way to track who does what on the wiki, that could cut down on problems.