Edge - 2:24 pm on Apr 12, 2012 (gmt 0)
I have been able to control the botnet visits to a manageable level. I'm knocking out approximately 90% + of the hits – millions of monthly page views…
This is done via. htaccess language and ip blocking. About every four-five days I update my ip ban list to the top 3800 offenders. I have actually banned entire ip ranges of regions/networks that hit often and are of little to no monetary value to my vertical.
AdSense revenue is/has recovered and life moves on.