I tried using ExoClick but I personally perfer a business model more similar to AdToll or AdEngage. I don't like being restricted to a particular industry.
ORiN, on ExoClick, you can target by country, global category, keywords or sites as an advertiser. You are not restricted to any industry. Cheers!
I think I need to rephrase. What I meant is that I publishing ads restricted to category. Since I run a proxy, categories don't really mean anything to me.
ExoClick is good but u should try other publishing sites aswell and then choose which 1 is the best for u