AdBrite seems to be doing good for me thus far. The only thing I can't figure out is, how do I get stats (hits/clicks) for periods OTHER THAN "total" or "today"?? Given that EVERY other ad network does this, it can't possibly be that hard could it? Or, I could just be missing something real obvious.
AdBrite Control Panel -> Info and Statistics -> Click Report This will show you 30 days worth of data and a field labeled "Find zone stats for the last _____ days" where you can specify a different time period.