Once I believed that I wanted to rid myself of the books. A paperless classroom, so to speak. I just wanted to post content on the web and link to online resources. But, I've experienced a turnaround. Books are great, few classes should be without them.
Books give the class depth, and a common footing.
In addition to a class book the addition of Internet resources make for a very rich and accessible environment. Other instructors have told me that web-savvy students in their classes have contributed a great deal to their fellow students. Those students that can immediately find leads to deeper sources are quick to share their tips. The web encourages them and they eagerly communicate that enthusiasm. That is using the medium for what it really is.