Meredith Farkas wrote what looks to be a great book, Social Software in Libraries: Building Collaboration, Communication, and Community Online. I haven’t read it yet but it’s getting some good reviews. There are been some problems with the first print run, so general availability won’t be for a few weeks. (Amazon has one copy for $65!) I hope your library has ordered it already. Based on the quality of Meredith’s blog, it should be a good one.