I've just joined Good Reads.  I've seen it recommended in several places, so I thought I'd give it a try.  So far, I haven't done much with it, I haven't even included a proper profile.  The trouble was, I got caught up in rating all the books I've read in my chosen genres.  It was amazing (not to say scary) how many I can't remember properly, not because I didn't like them, but because it's been so long since I read them. I will take a thorough look at the site and no doubt enjoy all that it has to offer, but not today–today, there are one or two books that are going to come down from my bookshelves for more than a dusting.