Background: My websites have international users. I have written reviews for amazon and their products on these sites.
I've been looking for ways to redirect international users from my website links to their local Amazon store while correctly linking to the original product and keeping my affiliate ID intact. I've found a couple of ways which I will list below, but I was wondering if there were any good alternatives that I have missed.
This looks pretty good http://code.stephenmorley.org/php/mapping-visitor-ip-addresses-to-amazon-sites/ and http://petewilliams.info/blog/2009/07/javascript-amazon-associate-link-localiser/
QUESTION: Just to be clear, I'd like to know what methods/tutorials/scripts people are using to redirect international users to their local/relevant amazon store.
You could use something like GeoLite (tutorial on how here) to find their country and then set up an array to cross check their country with wherever the header() function sends them. It would be some work, but you could do it.