1. Hundreds of thousands of businesses advertise on Google AdWords but 80% of Google’s US revenue comes from about 1.5% of the advertisers (large companies such as Amazon, eBay, BizRate, etc., source: SEMrush).
2. The overall industry average click fraud rate in Q2 was 12.7%. That’s down from 13.8% for Q1 2009 and from the 16.2% rate reported for Q2 2008. (source: ClickForensics)Click fraud is a type of Internet crime that occurs in pay per click online advertising when a person, automated script or computer program imitates a legitimate user of a web browser clicking on an ad, for the purpose of generating a charge per click without having actual interest in the target of the ad’s link.
3. The paid clicks in Q2/2009 were up 15 percent year-over-year, but down 2 percent from the first quarter. (source: Google Q2/2009 earnings summary)