I can't figure out how to cancel my advertising campaign. There doesn't seem to be a way to do it and they are not open to give customer service.
Apparently if I want to disable my adbrite RSS campaign (and I do), I need to kill my source feed! As long as it exists, they will be syndicating it with their crappily-targeted ads.
I think my problem was that I was running a 1 day test ad on a site and it expires automatically. I assume that more than 1 day ads will have a "cancel" button somewhere. brandon