Our school needs a research guide with various parts to it, and especially a section on plagiarism. So I'm making a wiki on wikispaces. It's very easy and a lot of fun. It took a couple of sessions to figure out how to edit the navigation column and how to link pages, and I'm finding the formatting a bit frustrating, but overall I'm very happy. I've set it so that anyone can look at it but only members (our faculty) can edit it. it's at http://christschoolresearch.wikispaces.com.
The Web 2.0 tools are great for users like me, who are not afraid of technology and use it a lot but are not technically oriented by nature and don't want to learn html and the like. Blogs, wikis -- yeah!