Google click quality 'investigation' - part 2
Following up to my previous post about Google click quality investigation : Google made another apparently superficial look at their data. They still insist that they "did not find evidence of automated activity or unethical behavior. Our data indicates that the clicks arrived from a variety of users and IP addresses." I have repeatedly sent them the following arguments, which they have consistently avoided responding to directly: I still don't understand how you do not find the correlation between blank referrers and poor performance suspicious. This is the strongest correlation evident from our logs, and it holds not only on the Saturday and Sunday in February when this activity was highest, but it holds throughout a 3-month range of dates, and it holds regardless of where the blank referrer clicks predominantly originate from. That Sunday for which you analyzed the logs, the blank referrer clicks were coming from Brazil, but on 2006-12-10, for instance, they're c