...this confuses me. So...it's like tumblr...for books?
Either way, I'm mainly on Goodreads. I do occasionally come here, and also do periodically import my shelves from GR here, but GR is a more sure bet for contacting me.
It sounds really good, but I don't think my heart could handle it. I can really do with some happiness in my life right now, so this one maybe later...