LibraryThing, I think I love you

I have recently discovered LibraryThing, a site which advertises itself as "a community of 600,000 book lovers" where you can post books belonging to your library, or books you've simply read and enjoyed, and talk to other users with similar libraries. It's great fun, and I am definitely skewing my list to the britlit side, so I can talk to the likeminded. LibraryThing is definitely the best of the many social networking sites for the bookish, IMHO.