- Average click fraud rate was 16% for Q3 ’08, down slightly from the 16.2% reported for both Q2 2008 and Q3 2007.
- Average click fraud rate of PPC advertisements in Google AdSense and the Yahoo Publisher Network was 27.1%, down from 27.6% for Q2 ’08.
- Traffic from botnets responsible for 27.6% of all click fraud traffic in Q3 ’08, up from 25.2% for Q2 ’08.
- Click fraud originating from countries outside North America came from Russia 4.9%, France 4.8% and the U.K. 3.5%.
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