I dont really see how click-fraud is such a danger to the PPC industry.
Lets use the ppc keyword "dogfood" as an example. There are 100 legitimate content sites that have contextual ads displayed for "dogfood." The industry is 100% "pure" at this point - any 'dogfood' ads clicked on will result in legitimate leads for the advertiser. Because of this, the value of each click rises to $5. The advertisers product may only sell for $5.01, but because each click is legitimate, theyre still making money.
Now, lets move a year into the future. The "dogfood" niche now has 200 websites, but only 150 of them are true content sites - there are now 50 spammy portals, which either generate relatively useless traffic/clicks, or just blatantly try to defraud the system with clickbots. This means that only 75% of the clicks generated by the dogfood ad publishers results in a legitimate lead for the advertiser. So, each click is only worth 75% of what they were paying a year ago - $3.75. Since the amount advertisers pay is completely up to them, the high bid for the industry drops to the highest sustainable amount of $3.75 (since paying any higher would result - long term - in a loss).
As time goes on and more spammers dilute the traffic, the price per click simply drops to match. For the advertiser, it makes no difference - the bidding system ensures that they never pay more. As the bid price drops, their marketing budget stays the same - so theyll simply be generating more untargeted traffic to their sites instead of less targeted traffic. Either way, theyre still getting the same number of sales.
Of course, assuming there were no intervention, this could eventually reach a point where the traffic is 100% noncontextual/fraudulent... but even then, the bid-per-click style works in their favor, since if 1 out of every 1000 untargeted visitors results in a sale, that traffic still has value - albeit at a very low cost per click.
But even with all that, Google (and im sure others will follow) has found a way to keep your traffic contextual no matter what - by allowing advertisers to target certain websites to the exclusion of others. This makes spam and clickbot sites completely irrelevant.
So, whats all the concern about? It seems like the only thing spam and clickbot sites are hurting is themselves.
Lets use the ppc keyword "dogfood" as an example. There are 100 legitimate content sites that have contextual ads displayed for "dogfood." The industry is 100% "pure" at this point - any 'dogfood' ads clicked on will result in legitimate leads for the advertiser. Because of this, the value of each click rises to $5. The advertisers product may only sell for $5.01, but because each click is legitimate, theyre still making money.
Now, lets move a year into the future. The "dogfood" niche now has 200 websites, but only 150 of them are true content sites - there are now 50 spammy portals, which either generate relatively useless traffic/clicks, or just blatantly try to defraud the system with clickbots. This means that only 75% of the clicks generated by the dogfood ad publishers results in a legitimate lead for the advertiser. So, each click is only worth 75% of what they were paying a year ago - $3.75. Since the amount advertisers pay is completely up to them, the high bid for the industry drops to the highest sustainable amount of $3.75 (since paying any higher would result - long term - in a loss).
As time goes on and more spammers dilute the traffic, the price per click simply drops to match. For the advertiser, it makes no difference - the bidding system ensures that they never pay more. As the bid price drops, their marketing budget stays the same - so theyll simply be generating more untargeted traffic to their sites instead of less targeted traffic. Either way, theyre still getting the same number of sales.
Of course, assuming there were no intervention, this could eventually reach a point where the traffic is 100% noncontextual/fraudulent... but even then, the bid-per-click style works in their favor, since if 1 out of every 1000 untargeted visitors results in a sale, that traffic still has value - albeit at a very low cost per click.
But even with all that, Google (and im sure others will follow) has found a way to keep your traffic contextual no matter what - by allowing advertisers to target certain websites to the exclusion of others. This makes spam and clickbot sites completely irrelevant.
So, whats all the concern about? It seems like the only thing spam and clickbot sites are hurting is themselves.




