The title of the thread suggests you are looking for a way to hide traffic from ppc, but your description says ppv. The two are completely unrelated and trying to hide traffic from either sources will differ. So which is it that you are trying to hide your traffic for?
The only thing in common between the two is that the advertiser has the option to manually check both campaigns, so hiding from them will never be 100%. In both cases, ebay will manually do searches on the major PPC networks for keywords on their do not bid list. Anyone that comes up on the paid search will likely be banned from their program. For PPV, they will manually check all the urls in their domain by installing adware. Anyone targetting any ebay domain will get flagged/banned.
If you can find a way to get around their manual checks, then there are a few things you need to consider.
PPV traffic is often classified as adware traffic. Users install toolbars on their pcs, sometimes against with will, and it also changes the user_agent of their web browser. This cannot be modified by any scripts, and is something that the user communicates to ebay directly, leaving you with no way to change it. This is very easy to spot/ban for. Before sending any ppv traffic to any vendor, make sure that it is safe to do so by checking the useragent string, and if your not certain, be sure to ask your affiliate representative if its ok to send that type of traffic before doing so. If there is no modification or changes with the useragent, it should be safe to simply use a double meta refresh to blank the referer, or a cloaked forced form submit to change it to whatver referer you want.
For PPC, a simple double meta refresh or a forced form submit to change the referer is enough, since the useragent will be normal because its a paid search result.
-Gen
