I am a huge fan of PaperBackSwap. I just got a "new" book from someone today as a matter of fact. But I read that my local library was having a book sale in February and was taking book donations. I know that this small little library has been in trouble in the recent past and was in jeopardy of possibly closing. I love small town places, and our little library can use all the help it can get.
I decided to take all of the books that I had ready for swapping and donate them to our little library instead. I dropped off a decent size box of books this afternoon, and the librarian seemed most grateful.