My pasty white ass they don’t!  I’ll bet Google uses every bit of info they can get their grubbly little data-centers on!  I got that quote, by the way, from this article which contains quotes from a Google engineer.  Listen: when you install the toolbar you get all sorts of goodies free of charge, but hey guess what?  Google gets to monitor web surfing habits free of charge.  Google knows which pages you went to, what time of da and for how long.  You’re Google’s bitch.  More on what other data they probably use in future articles, but know this:  imagine those two little “o”s in “Google” as eyeballs totally checking you out while your on the potty.  Then imagine some holographic AdSense poping up, “New and used toilet paper on eBay!”