@Molotov: I've just recently signed-up to AdBrite and put it up on one of my sites where I have already installed Google AdSense. That site is my best earner for AdSense, and I was hesitant to replace it with AdBrite.
But I found out that AdBrite has this function which allows the higher earning Ads program to be shown (in my case AdSense) if the eCPM is higher. I'm still in the early stages, but I think that feature saves the day for me.
Good luck!
