Amazon have introduced Self-Optimising links, similar to Google Ads. To quote the Amazon site:
Self-Optimising Links feature products chosen automatically based on the content of your site. To create Self-Optimising Links simply modify the template and appearance elements below and copy the resulting code on to your site. With Self-Optimising Links, you do not need to chose which product, product line or even keyword that best fits a page. Our algorithm will take care of reviewing your site and selecting relevant product offerings. At present we are offering Self-Optimising Links as a BETA to our Associates.
If you have an associate-ID you can install this module and place the links anywhere you wish.
Enjoy - Please send any comments, suggestions and report any bugs to: