dom,
i suggest you take a look again on the last example we discussed in PM, they are sending their traffic to a small PPC engaine which sells advertisment to many affiliates here, some vendors and other ppc engaines along with ebay and other directory sites.
i do not see the fact that they will go into other industries since there is no adsense PPC money in this industry, there are many many other PPC publishers that do work in the gambling industry and will be mor ethen willing to take the traffic , there are ‘000 of them.
and since everyone (including the other PPC engines) are buying PPC traffic and clicks from all of the othert PPc engaines you as a buyer of the final PPC click have no idea where the traffic really was originated, it may have started from a scraper, the click was sent to a small PPC engaine which a larger site like ebay bought traffic on, where ebat presented some overture PPC feed whicj you bought traffic on .
I would love to understand how do you stop the money flowing here, i am clueless