Which countries do well with adsense (US, canada, ...)? I want to set it up to show other advertising in countries where adsense doesn't work too well.
Us and canada are very good. The Uk has some keywords that pay well also. You can make sites for each country and keywords if you like. Asian countries and eastern european countries are the ones you want to use other ads.
how do I know which countries are in high-demand? Right now I have it set to show in US, Canada, UK, and Japan. And I'm averaging about 1% CTR and $1.50/CPM.
I've been using CPX Interactive for the other countries and it's hardly making anything. Any suggestions for ads that work well in other countries?
It depends on for which country adwords advertiser wish to profit from based on his research. But US is mostly BEST.