Literature social networking?

Anyone know of any social networking site that is centered around literature? Like a site where you can tell them what types of books you like, what you have read, and they will offer suggestions for other books you might like, and connect you with other people with similar interests?

All I could find is blog sites that some people post literature stuff on, thats about it. Maybe if you are interested you could work on opening a site that could do social networking about literature in your future.

do not have an answer but the question is great and I want to hear intelligent answers