I should also say it's all about how these advertising programs can maintain how good they filter on the relevance of the keywords and it doesn't matter if it's an Asian/Indian or a worldwide program to use. What you should consider is how will it be more suitable for your contents as this pays a lot especially when your readers would really target what you market in your website -- they should also be seeing those products related to your contents through your ads and observe its effect on gaining more followers.