Ok, so I'm looking to buy a Mac and am seriously considering getting the Kindle and getting the 20% discount through Amazon. My question is this: When shopping through Amazon, what is the best way to maximize miles? I have an AAdvantage card and a Chase Sapphire. Can I go through the American Airlines shopping portal and get extra miles? I've never shopped online through that. I know I'll get 1 mile for every dollar spent using my credit card, but want to maximize the way I do it.

Thanks.