Better World Books

http://www.betterworldbooks.com/

Better World Books supports world literacy by reselling used books. A portion of the profits go toward setting up reading programs in other countries. You can donate or sell your books to them.  Here is a list of what they will accept. 

Stuff They Take:

The provision of referrals for charities, ministries, donation sites and green companies is offered by The Stuff Stop as a referral service. We assume no responsibility for the actions or the services provided by any organization referred through this website.