Ok so it's a newb question... Can I run other ppc services on my site while I have adsense on there? i.e Adbrite or Widgetbucks and Adsense?
Guess I answered my own question. "If You have elected to receive content or Site-based Ads, You further agree not to display on any Serviced Page any non-Google content-targeted advertisement(s)."
Yes, you can display third party ads along with Google Adsense ads. But keep in mind, ads from different vendors should not mimic each other. That is, it should be different in styles/colours etc.