I believe that Yahoo also runs an ads service just like google adsense. My question is that whether they allow a publisher outside USA?
I think they do allow publishers from all round the World but you will be get paid only when the traffic is from US...Still i am not sure about it....Better read their ads policy...
Mostly they dont allow people outside US. If you are a genuine and has good influence it might help, not sure
Betta version in US only for last 3 years. I think there is some kind of agreement with Google not to extend this service. Exactly as google not really going into finance area where Yahoo!Finance is dominant. All divided, who needs competition (and wars).
They are still working on their ad serving packages. Nobody knows when they would introduce their global program.