I started a couple of giveaways on Goodreads. If you live in the U.S., you can enter either one for a chance to win a free signed copy of Shadow of the Fox or The Helios Legacy, depending whether you prefer ninjas or girls with guns. I might even throw in a doodle for the hell of it.
Sorry to the non-US bookworms who might want to join in. Last time I tried to ship something internationally was a disaster, so I'm keeping it local this time.