I wrote about Books for Africa. This I found out about Out of Print Clothing. For every product sold, for every follower on Twitter, Tumblr, Facebook, and/or Pinterest, they donate a book to a community in need through Books for Africa.
That means you can donate four books without every leaving your computer or paying a cent. Or you could buy something - Out of Print has T-shirts, stationery, tote bags, and more. You could buy this THE GREAT GATSBY tee on sale and wear it to the movie premiere! (Anyone want to lend me $16 to get one for myself?)