What do I do with my books?

[Rhone]

I'm moving on Saturday, and being only 1 year removed from grad school, I have a ton of books in my apartment. Even though I don't use them anymore, I hadn't given them much thought over the last year, but now that I'm packing up and imagining lugging boxes and boxes of them to my new place, they're starting to feel like a problem.

I want to get rid of them, but I feel really bad about throwing away books, and I'd like to make that a last resort. How I can give them away so they go to some good use? I live in a highrise apartment building in the suburbs, no large student population around here. The books are fairly specialized, and the average person on the street is not going to be interested in 90% of them. I also don't own a car.

Any thoughts are greatly appreciated, OOT.