Due to low CTR on a number of pages on my other sites I switched those pages to include inline and intersitial ads from Adbrite. That change was made a couple months ago and since then Adbrite has overtaken Adsense as my main revenue earner. My Adsense revenue also hasn’t suffered so I’m not complaining at all.
One gripe though. Adbrite’s daily reporting isn’t as accurate or updates as frequently as Google’s. I’ll live with it though.