Week 7 Thing 16 and 17 Wikis

I am a little overwhelmed by all of the information I've tried to absorb this weekend. Basically, I understand the concept of wikis as a tool for building community discussions and projects. I'm not so clear on how to go about setting up one. The link http://meredith.wolfwater.com/cil06/ is very helpful and when I have time to actually create a wiki for my classroom, this is where I will return for help. What I'd like to do is create a wiki for use with one of the novels we read in class. Contributions to it could be made during class time,not just outside of it, but this would be a lot more motivating than answering questions on worksheets, and would still demonstrate their understanding of the novel.