Marketing that targets marketeers. For example all the cute tricks used to bump up google pageranks. Or the MillionPixelHomepage. Or the horror described on BlogistanIsDead. 

''MetaMarketing should give us all hope for the future. Once the marketeers start believing their own disinformation, real information channels become possible again. Don't try to resist the FeedbackEffect - that's futile. Go into the black hole and come out the other side!''