I like this idea too -- both for itself and for the chance to spread some information about Creative Commons licensing! :)

Cool idea! That might be scary for some people if it was prominent, but I like the idea of having it available somewhere.

As far as I can tell from the Terms of Use, we users maintain ownership of our reviews. I just finished reading Remix Making Art and Commerce Thrive in the Hybrid Economy, by Lawrence Lessig. As I reviewed it, I noticed that there's no mechanism for explicitly indicating how we license reviews we post to Goodreads.

It would be great if we had a field where we could select a license for our reviews (with the default being all rights reserved)--Flickr has such a feature. That way, I can clearly indicate to people who read my review that it's licensed under a Creative Commons license, and they are free to redistribute it under those terms.