gonereading.com). It's a shopping site, where you can buy T-shirts, bookends, bookplates, bookmarks, games, posters, and much more...all related to reading and books. (Get something for your favorite librarian!)
The interesting thing about this site is it's more than just a place to buy cool gifts. They donate their profits to libraries and reading-related charities, so your purchases go to help support a good cause. The founder, Brad Wirz, is also on Twitter: @gonereading4evr. Check out this neat online store, and find out how you can get free shipping!
Update: Between now and April 19, 2012, get 25% off purchases (except bookends) when you use the code ONLINELIB25.