monetizing non-US amazon

I know that I have to sign up to amazon UK, Canada etc. to monetize traffic from those regions. That's no problem.

My problem is If someone comes from the UK, how can I get wordpress to put up an amazon UK link instead of an amazon US link?

I've heard of EasyAzon but it sn't ideal for me because I just want to test if I'll actually get any sales using amazon UK and amazon Canada. I've literally only got about 20 links I want to test so don't need EasyAzon.

I havent tried it myself yet but I plan to soon. Check out Www geni.us

I can't link here yet sorry but I'm sure you can work it out.

If you have a wordpress site, then you can use easyazon.com