Amazon's web services

Technology Review has article on Amazon's web services. I have been really intrigued by Amazon's open application. I've been thinking of pulling information from Amazon into Docwalla wishlists. So far i have only gone as far as creating an affiliate account and using that code when I link to Amazon (I did in a post here earlier today) - a step which has netted me about $3.50 since I got Amazon Hacks last Christmas (there I go with that linking again).