New Click Fraud Calculator

How much click fraud is there? When I'm asked, my answer is honest. Who knows? We've had a few stats and estimates, but depending on the industry and the terms involved, the stats could be completely off -- not to mention the source behind the stats being a factor. What are some factors that may put you at risk? Vinny Lingham at Clicks2Customers has just posted a Click Fraud Risk Calculator that by asking a few reasonable sounding questions gives you some idea of this. Some background from Vinny here.