Thanks Prolific. That must be it. I had read about that but did not make the connection. And yes they were browsing with FireFox. I wonder what they are up to with just tracking FireFox users that way?
Since Firefox users are more sophisticated and intelligent on average, maybe G wants to track their browsing habits to help fine tune their ranking algorithms. I'm sure they had Joe-sixpack@AOL.com scoped out early on. -LH