Better World Books is like any other website that you can buy new and used books from, except for one, awesome detail. For every book that is bought through their site, they make a donation so that someone else gets a book too! They partner with Books for Africa and Feed the Children to give books to those who would otherwise have no access to them.
The great thing about giving books is that they contain a wealth of information and possibility, and they empower the people that read them. I have always had access to books, whether it be through my town's public library, bookstores, or even eBooks. I can read nearly anything I'd like with the click of a button, and yet there are people in the world who would feel blessed at the opportunity to own one book themselves.
If you want more information on how they do this, you can learn more here. Also, just so you know, Better World Books offers free shipping! How great is that?