t is sometimes beneficial to use Google’s traffic estimator. Remember the sizes of banners that are displayable and what ranking you want to be. It isn’t always necessary to have the 1 – 3 ranking and pay 25 cents more to get that ranking. The skyscraper banners can sometimes show 6 – 7 ads easily. Also remember that most of your ads will be showed on content sites. With all of that ad sense floating around you will get a lot of exposure so choose your keywords right.