I think this is an absolutely AWESOME site and even better idea! Here is a video to explain how it works:
So my advice is to go check out
CampusBookRentals website and rent YOUR book TODAY! Also go to CampusBookRentals on Facebook and tag their wall letting them know Da Freebies sent you! Then while your checking them out make sure you go like CampusBookRentals on Twitter to make sure you get all their Twitter updates!
And While you are at it check out Operation Smile and make a donation! You can find Operation Smile on Facebook and follow them too at Operation Smile on Twitter
As well as Operation Smile on Pinterest, Operation Smile on Youtube
a Rafflecopter giveaway