I just discovered Wired for Learning: An Educator’s Guide to Web 2.0. It’s divided into five parts: Introducing Web 2.0: Trends, Signs, and User Design; Social Learning, Networking, and the Web. 2.0; Environment and User Center Design; Learning Management with Web 2.0; and Web 2.0: Case Studies and Ideas for Educators. Much of the text is available on Google books, except the two pages on communities of inquiry that are most relevant to my topic, so I’ve requested it on Link+. Let me know if you’d like to look at it.