Page is a not externally linkable
-- Webmaster General
---- New Techniques Can Track Net Location Within 690 Metres
Leosghost - 8:46 pm on Apr 9, 2011 (gmt 0)Thread source:: http://www.webmasterworld.com/webmaster/4294528.htm
These are ad companies doing this independently when serving ads on website pages ,the instances I have seen ..not Google ..the ads do not come from any of their networks.
Brought to you by WebmasterWorld: http://www.webmasterworld.com