PBW has a roundup here (and don’t forget to check the comments for others.)
Marjorie Liu is having a twelve-days-of-Christmas giveaway, and you just have to sign up for her newsletter. (And check it out! For those of you excited about the tease for THE IRON HUNT, her novella in WILD THING is the first story in that series.)
Milady Insanity always has links to more contests on her blog — she’ll keep you updated.
ETA: Oh yeah, don’t forget I’m having one, too. 😳