One of the biggest problems in the monitoring and investigation of click fraud is getting the real figures of the problem. There is no shared analytic data between advertisers, click fraud software suppliers and the search engines and as a result levels of click fraud differ from 0.02% according to Google up to 50% from some click fraud software suppliers.
A few shining lights stand out from the crowd. These organisations are collecting large volumes of data and are creating a transparent and available view of click fraud to the wider advertising audience.
At the head of this field is Click Forensics, Inc. This company publishes the highly acclaimed click fraud index on the back of it's click forensics monitoring solution. Their software is free to small time advertisers and chargeable to larger corporations. The most important part of the process is that the data is captured centrally and analytical research is done on a large data set. The result of their investigations are published quarterly as the Click Fraud Index. The last reported CFI was at 15.8%
Click Forensics are fearless in their pursuit of transparency and their CEO Tom Cuthbert is in constant gladiatorial combat with Shuman Ghosemajumder Google's invalid click Czar ( some call him the click fraud MIB, covering up all traces of indiscretion). They joust on the real level of click fraud. Google doubts the validity of Click Forensics data gathering technique and in return they question Google level of transparency.
Click forensics is not the only player in this arena, and these groups are not providing these services for altruistic reasons, they are either trying to sell click fraud software to advertisers or are attempting to sell the data collected to the paid placement companies such as the search engines.
I would advocate that all advertisers participate in some sort of data sharing scheme, in a previous post Fair Isaccs were recruiting advertisers to share their data under tight non-disclosure agreements if you would like details on how to participate in their study please contact me.
--
(AF) The most important resource I use for my search engine optimisation work is Aaron Wall's excellent SEOBook.