AP US History Study Guides
This is getting to be too wonderful. All we need now is to have a laptop for our students and we'll be all set. Go here and you will find every major AP US study guide in the country and it's all FREE. You can also add the link to your own page or you can embed the entire thing in a webpage as I have done above. Generally there are a few pages missing, but you still can get a lot for free.