1. Google Adsense. It is the leader of online ad industry currently. According to its description: “Because the ads are related to what your visitors are looking for on your site — or matched to the characteristics and interests of the visitors your content attracts — you'll finally have a way to both monetize and enhance your content pages.” If you have a lot of Asian traffic, this may be the best for you. Google pays you on net-30, monthly. (with minimum $100, if your account has less than $100, your balance will be rolled to next month).