Interesting idea. Will check it out.
A little off topic, but how can you guys possibly spend so much $$$ on books every semester? While waiting in line last week to sell my VLSI book (that I bought for $18 shipped online and got $13 back for it), I noticed the person in front of me with a $594 receipt. $600 for one semester?! I've maybe spent $600 on books in the past 3 years, and I have a full schedule every semester. Might even be less than that if you count selling books back, which I generally do if they are crappy books, plus the library has so many books on all topics that it's pointless to keep them. The ones I do, I think, "oh this will be a good reference"... yah, good intentions, cept I never touch the damn thing.
Buy online (addall.com). Buy soft cover, international edition when possible (though I prefer to buy these from USA sellers). At least check into alternative methods of buying books before dropping $500+ at the bookstore.
My book costs for the past few semesters:
This fall: Just realized last night I still needed the one book I couldn't get online sicne it's written by the Prof who teaches the class. It is $40 new at the bookstore. Jumped on the school forums, to the FS section, sure enough, 8 hours earlier was a FS post for the book I needed. Like-new condition, $20. I'm meeting him later today. Cost: $20 (will be less once I sell it back)
This summer: Bought book online for $18 shipped, sold back to school for $13. Didn't bother with this other BS book that was required but never used. Net cost: $5
Last spring: Borrowed some books, even sold one of the borrowed books back (the guy seriously would not accept it, cause well it was a useless POS). Net profit: $7
Last fall: Borrowed some, bought one for very cheap online and made some of it back selling it. Probably net cost of $20-30 at most.