I’ve made a test, on one of our websites targeted, to US visitors, having before Google adsense and after that adbrite, on the same ad spots.
Conclusion: Google Adsense produce an income 78 (seventyeight) times bigger then AdBrite! WOW.
the quality of the Adbrite’s ads was very low, the contextual targeting did not function, it was clear that they do not have quality ads.
I will test also the rest of competitors, to see how they rank.