What should I do with old College books

So I'm going through my room, preparing to move in a few months here (yay, finally out of parents place)- and I still have a shit load of college text books. 

Whats the best way to sell and/or get rid of these?  What method have you guys done?  Was it a huge hassle, very easy, or somewhere inbetween?

amazon most likely

I have a store here called Half Priced books.  Not sure if they're a chain or not but they buy college texts.  Of course they don't pay very much unless it's a pricey book, but it's still better than nothing.  Also, contact me at this e-mail and i might be interested in them.

>>3

yes, they're a chain.

http://www.halfpricebooks.com/find_a_store.html