If you've gone away from paper books I say donate them...here are some great places:
Library-mine has racks of paperbacks and people can choose unlimited books for unlimited time from them
Church-if they are religious
RV Parks-ours has a "free" library where people can bring/take books and magazines
Guilds-quilt books/magazines you're never going to use
Nursing homes-both the residents and workers could enjoy them (also a great place to donate puzzles and puzzle books)