Just finished listening to "The Night Circus" bu Erin Morgenstern, read by Jim Dale (the same man who narrates all of the Harry Potter books on tape, as well as some of the DVD special features). Ho.Ly. WOW. What an amazing story! It was 13.5 hours long, but worth every minute. Incidentally, there is a social networking game thing too:
Bridie's Profile
If people click the link it unlocks interactions or something...I'm not quite sure how it works.