Have you heard of Concord Free Press? Their motto is "free their books and their minds will follow." They're pretty serious about that "free" part too, btw, at least in the sense that they don't ask their readers to pay them for their books.
Instead of selling books they give them away and ask customers to make a donation to a charity or someone in need. They also encourage that person to pass the book along to someone else so that the next person will also make a donation, leading to a chain of giving that can go on and on.
How cool is that? Scroll down on their website to see a list of customers who have already made donations for their first book. Very inspiring, particularly in this time of economic unrest.