Page is a not externally linkable
-- Google AdSense
---- Clickbots and Adsense Fraudulent Clicks
netmeg - 2:44 pm on Aug 6, 2008 (gmt 0)Thread source:: http://www.webmasterworld.com/google_adsense/3716512.htm
You'd have to mix it in pretty well with actual valid queries in order to keep it under the radar - Google is all about finding patterns of misbehavior.
Brought to you by WebmasterWorld: http://www.webmasterworld.com