Another day another company trying to create fear so they can sell a product. In this case its a research report into click fraud. At least this one isn’t sponsored by companies claiming to sell you “solutions” to click fraud.
1. One thing i’ve noticed is that around 30% of clicks are recorded more then once. The browser must be sending multiple requests due to lag, or something else related to the way the users machine is set up. Seems to happen mostly for dailup users.
2. As both an advertiser and adsense user i’ve noticed a LARGE percentage of users will use your ad as a bookmark. Of course if you define every click where the user has no intention of buying as click fraud this can really mess up your stats.
The end result is none of this matters, unless someone is targeting you with hundreds of thousands of click bots. What everyone perceives as click fraud is nothing more then default user activity. The thing that all these people researching click fraud don’t want to admit is that all this is already factored into the price. If you notice that 20% of people coming to your site aren’t buying because they are clicking the ad more then once, or are using your ad as a bookmark you are going to lower your bid by 20%.
A far bigger problem is the trash in Yahoo’s PPC program. When you signup to advertise in the USA, some of the terms have over 50% non American traffic. Mostly junk traffic from Morocco, Egypt and India coming from questionable third party affiliates that is what I would define as click fraud.