There are a few days left (I think you have until Aug 8th) to win hardbacks of Maggie Stiefvater's The Wolves of Mercy Falls over at Anna Bank's blog. The rules are easy (my kind of contest) follow her blog and her Tweety bird and sing a song about her contest (on Twitter...no karaoke required.)
If you don't already stalk Anna here's a little info: Anna Banks (pen name) is repped by Lucy Carson of the Friedrich Agency. Her debut YA Fantasy, OF POSEIDON, will be released through Feiwel and Friends in Spring of 2012.
Also, from what I can tell from 140 characters, she appears to be a very nice person.