Go here to enter: http://yascavengerhunt.blogspot.com/
There are 3 different contests. Red, Blue, Yellow teams. You can enter once in each. You go to cerntain author's blogs and look for a single, colored letter. Once you collect them all for a color, you unscramble them to make a phrase related to YA books/scavenger hunt. I suggest using scrabble pieces.
The prize is 20 signed YA book. 1 from each author on the contest you won. It's very fun. It ends at noon on Sunday, April 1st, so you better hurry!