This post is meant to be more of a question rather than providing the answer.  In honesty my book piles are gradually growing larger and larger and I need a way to sell some of the books that I will most likely not read again.

When I was in college I use to sell my text books back to the college bookstore immediately after the semester finished.  However, the payout I received was minuscule in comparison to my purchased price.  (As a result, renting text books has become one of the most successful online business venture).  After college, I sold all my books on half.com until my dislike of eBay stopped me from using their service.

Now, where would be a good place to sell my used books?  I know some people have recommended CKY Books as one option and I will definitely give them a try.  Other than CKY Books, are there any good sites that purchase used books at a reasonable price?