Ads EZ is a clever plugin to serve your ads to multiple web sites. It can work as standalone web application or as a WordPress plugin. Using Ads EZ, you can centralize your banner ads in one location, and use simple shortcodes to place them on your blog pages, or generate invocation codes to place them on any other web sites or blogs. You can even serve HTML ads with the same shortcode and invocation code mechanism.
Do you have multiple websites which you monetize using advertising? If so, this personal ad server may be the right tool for you. Ads EZ makes it easy for you to set up an optimized ad server that can service your websites. Aiming at simplicity, Ads EZ does away with all the complicated zone and expiry settings. All you have to do is to collect your banners in a folder, upload them and specify their targets using a simple and intuitive interface.
Field-tested for my own ad serving, handling about 200k ad impressions a month.