Out of date IT text books, study guides, reference books

what does everyone do with their old outdated text books, reference books and the lot?

Here in the US, text books can’t be recycled due to the glue used for backing,or so I’ve heard. That leaves recycling out. I thought of donating them, but everywhere I go, I get turned down. Ebay hasn’t turned up any offers on them, not surprising. Heck the cost of shipping them makes em to expensive even if I were to give them away.

These are W2K [AD,Exchange,DNS, and old cisco text books [some 5 to 10 years old and their destined for the landfill. But before I toss em,and there’s a LOT of them, thought I’d solicit other ideas if anyone has em.