Right now through March 30th the ebook of The Maze Runner by James Dashner is only $1.99 on Amazon. This is the first book in the Maze Runner series and the movie version will be released later this year. I really enjoyed this and the other books of the series and would recommend it to YA fans. If I didn't already have it I would be snagging this up right now.
eta: The ebook is also available on Barnesandnoble.com for $1.99 for nook users.