If you are a flash game developer, you might use flash ad networks such as MochiAd, CPMStar to generate revenue, and at the sametime, you might also want to display your own house ad, and other sponsor's paid advertisements. We just released the beta version of a flash ad rotation system for flash games. It let's you rotate between mochi ads or your own ads, you can dynamically change sponsor ad creative. It also supports geo-targeting. This system is 100% Free. We'd like some feedback on what functions you think are useful, not useful, what we need to add, or make cleaner and easier.

http://www.ad4flash.com