I have heard from a number of Canadian readers who wondered whether they could use my Amazon affiliate links. I didn't fully understand the localization -- as Amazon keeps opening new Kindle stores around the world, this is changing the way I end up shopping through them.
At any rate, I now have affiliate status with Amazon.ca as well as my classic U.S. and U.K. links. I'll look into more countries also, but for now I'm just happy I've got this working properly. A click on the Canadian Amazon links puts you right out to the right place.