Where to sell your college textbooks: not at your school!
While outrageous textbook prices are a fact of life, cash-strapped students can make up some ground by selling their old textbooks directly to other students -- rather than trading them in at the school bookstore or another place that pays wholesale and then profits by selling the book at retail.
Websites like Amazon.com and Half.com allow you to cut out the middle man and get more for your old books. To list your books on those sites, click here for Half.com's textbook site or here for Amazon's. In addition, there are a number of sites that offer cash for your textbooks -- and they'll even include a printable shipping label so you can mail them in. While you'll probably do better selling the books yourself on Amazon, these sites offer convenience and you don't have to wait for a buyer to stumble on your listing. As a test, I decided to see how much a copy of Human Sexuality: Diversity in Contemporary America would bring on a few of these "cash for your books" sites, all of which pay the shipping. The book goes for $106.69 new on Amazon, while a used copy can be had for as little as $55.