I did find another fine online script that serves two purposes. The first purpose is to function as a Sandbox to display ads that could be displayed by Google Adsense, Chitika eMiniMalls and Yahoo YPN on your website. The second purpose is a ad comparison tool to compare the ads of the three networks to avoid being banned by Google or another network for ad similarity.

The script accepts either a keyword or url that the user provides and displays ads according to those settings afterwards. The country can also be simulated if that is necessary. There are several applications where a ad sandbox could be useful. One is to find competitive ads and disable them so that they are not displayed on your website.

Another possibility is to follow the urls and try to come to an agreement with the advertisers about directly advertising on your blog which normally means higher revenue for the same ad spots.

The user can display Google Text Ads, Google Link Units, Google Image Ads, Yahoo Ads and Chitika Ads. Besides those he can also compare Google with Yahoo / Chitika to make sure the ads are different enough to avoid being banned.

Check out the Ad Sandbox tool.