Here's two (**EDIT: make that five) more giveaways that have been added that you might be interested in:
Nicole at Linus's Blanket (love that name!) is giving away Sarah's Key by Tatiana de Rosnay. Open internationally. Go here to enter.
Sheri at Bookopolis will be giving away up to 5 copies of Gods Behaving Badly by Marie Phillips. U.S. and Canada only. Enter here.
Shooting Stars Mag, Serena at Savvy Verse and Wit, and Carey at The Tome Traveller's Weblog are all giving away Life After Genius by M. Ann Jacoby. Go here, here, and here to enter.