Jamie Boston spotted a new web 2.0 tool somewhat like "LibraryThing." It is called "BookBump." See School Library Journal - Web 2.0 News -- News, Features and best practices in technology for the k-12 classroom and media center from wikis and podcasts to the latest gadgets from School Library Journal. Give Your Books a Bump asks "Is there room for another online personal book management system? That s what the folks at BookBump are hoping. "
See overview of features. For example, it has a bibliography tool that supports multiple academic formats.