That surprises me. I've always been able to donate to my local library for their annual book sale. I've also seen donation containers in various parking lots around my area. Books are one of the easier things for me to get rid of.

>Listing and selling on eBay

Yeah, unless something is a big ticket item, eBay isn't worth the effort. You used to be able to outsource it to someone for a cut but nothing like that seems to exist any longer.