Do sites using Google Analytics (GA) allow Google to correlate GA traffic with user’s search, gmail, maps, doubleclick, etc... traffic?. Read article: http://intranet.math.purdue.edu/infotech/2007/09/12/google-analytics-end-user-privacy/ From that article: "If you wish to specifically stop website owners from aggregating details of your use of their website, a good firefox extension is CustomizeGoogle".