limitup - 11:14 pm on Dec 30, 2005 (gmt 0)
I don't see how you can compare the two. How in the world are you going to stop the click fraudster who hides behind anonymous proxies, etc.? You can't. All they can do is try to identify "potentially fraudulent" clicks and not pay out on those clicks. Publishers aren't going to just sit there while this happens - they will find other ways to sell their ad space once their ecpms drop to a certain point. End of story.