Hmm I've just found out about #bookwyrm which l, from what I've seen, is a more open, privacy centric alternative to Goodreads. The problem is they don't have author profiles so the only way to get my books on there would be to say I'm reading them. That seems a little against what that service is for.
I want to support this and there's a lot of synergy between my own #CreativeCommons ethos and what they do. I'm not interested in boosting sales or self promotion really but I do think people who use something like bookwyrm would appreciate my CC books.