I've added a Flash widget for my GoodReads profile to the right-sided column of Wistful Writings. Scroll down until you see it. If you're on the site, feel free to add me as a friend! If you're not on the site, er, sign up. It's free, fun, and you get to geek out about books with an entire community that are they themselves geeking out just as hard.
I've been using the site for some time now, but am not even close to finishing up cataloging my books. Currently, it says I have 310. Hmm, not bad, not bad. Though this isn't taking into account that some are books I've read but do not own. I think when I hit 500 the floor of my apartment will give out from all the weight and send me crashing into the creepy basement.
I can't wait.