Jim J Solo wrote on Apr 4^th, 2013 at 1:43pm:

Found mine at a used book store. I let him know what I like and he points me to certain areas. He'll even order me old books for an extra buck. It's the kind of place you have to turn sideways to get around and shoo cats away. Feels like I'm mining for hidden treasure. You can get an arm load for the cost of one new book at Barnes&Nobel. Not to mention that I'm recycling.

If you know what you want, abebooks sells used books online for dirt cheap. But they don't give personal recommendations or have cats (that I know of). You need to keep seeding your reading list with random stumbleupons too, and that's a lot easier to do browsing a bricks-and-mortar store.