Yet another social book site
Not that the books themselves are social, though I can think of a few fictional libraries where that might be true, but Revish is yet another social website with a focus on books. In some ways it’s closer to what I’ve been looking for than the other ones I’ve seen http://www.cavort.org/2007/02/21/while-im-thinking-about-books/. In any case, I have a profile there too now.