Did order books that out of print at Amazon but they did got it in the used section. One of them arrived in perfect condition from:

World of Books recycles books on behalf of charities and makes a contribution of around 10% of its turnover on an annual basis.
Worldofbooks.com

Really great idea, charities with books. I have to many books (they have taken over my apartment).
Why not make it 100% to charity?

Here is how it could work:

1. Work with an famous charity brand.

2. Put an empty shopping basket outside my door.

3. Pick it up and empty it in a book-bus.

4. Connect me with the result you achieve – so I can buzz about it (ore give me four empty baskets to my nab-ours).

5. Make me buy some of the books you sell so I can give them back again.