Hi
I’d sure be willing to contribute to Ant’s suggestion. I am in complete agreement with him that IMHO we’d make a bigger splash taking out ads than we’d ever do contacting the PPCs on an individual basis, and I say that being a large spender at them.
I know I’d get the same BS that goclick used as posted here. Yes, despite spending literally $1000s of dollars a month at PPCs, they’d not even blink an eye to see me pull my accounts.
I know, I’ve tried. 
But you start having warning ads show up when people do a search for pay per click search engines, or similar; and I’d bet it would accomplish getting their attentions.