Well, Dreams created an "authors on mobileread" thread that he maintains with information on each of the BPH, SPH, PTP, SP, and Indie authors on Mobile Read. Maybe he, or someone else, could start and maintain a similar thread with a list of all book review sites, as well as submission guidelines, genre info, links to reviews, and any other relevant information.
Another option is to have a separate book review forum, and then at the top include a master information thread (like the one mentioned above), and then individual discussion threads posted by one or more people where the reviews can be discussed. IE, something similar to the ebook upload forums where each ebook added to the site carries with it it's own discussion thread. I think it'd be a cool thing to have.
Now as for what kind of discussions would come with the reviews, I think that readers could discuss the quality of the review, maybe something the reviewer missed, or just general discussion of the book and/or review itself. I've seen some very lively, and productive discussions come out of things like this, where people get introduced to good books, things get fleshed out by the readers or the reviewer (or both) that ultimately help the writer get better and so on. So yeah, I see it becoming quite a positive thing. Especially for indie authors trying to get better at their craft. I know I'd gladly welcome such in depth and constructive reviews like that.
