Well I finally sat down and read the full 17 page report by Google on their analysis of click fraud. It’s not a terrible read, it’s not just telling the whole story, which was making me wince a lot. Sure, they have a point, users do hit refresh and they do click back on their browsers when they surf off a page. Yes, click fraud companies have a limited view of the world without being able to check against the actual click stats. But users also use Firefox. What’s that? How would a browser make a difference? It makes a ton of difference.