Source: http://www.engadget.com/2013/08/27/amazon-mobile-associates-api/
It looks like you may well start seeing more links to products sold at Amazon in your Android apps. The company has just announced the launch of its new Mobile Associates API, which will let app developers hook into its popular Associates program to earn a kickback of up to six percent on all products sold through their apps. Those purchases can be made either entirely within the app or through an external link to Amazon, and the API covers both Amazon's own Kindle Fire tablets as well as other Android devices (we wouldn't hold your breath for iOS support). In announcing the new option, Amazon said that it hopes it will provide an alternative revenue stream to fully paid, ad-supported or "freemium" apps for developers, but it'd also obviously also get quite a bit in return itself if they fully embrace it.
Filed under: Cellphones, Tablets, Mobile, Amazon
Source: Amazon