Testing For Click Fraud Rates

Marketing Experiments decided to test how much click fraud Google might detect through an experiment (free
registration required). Findings? An individual just clicking over and over on your ads in various ways (different computer, same IP; different IPs, other options) isn’t
likely to get you billed more than once. How about industrial-strength click fraud attempts. To determine that, Marketing Experiments reported on the findings of three
different campaigns monitored by IncuBeta. A campaign involving bids of $1-$2 was found to have the highest rate of fraud, 30 percent, while
two campaigns involving bids in the $0.20 to $0.30 and $0.05 to $0.15 ranges had fraud rates of 10 percent and 8 percent, respectively.