- Over 63% of the top 100k web sites embed their web bug ( http://smerity.com/cs205_ga/ )
- I have no data, but a huge proportion of web sites use Recapcha in their sign up process. It's impossible to use some domain registrars without revealing the IP address of the probable domain registrant
- I cannot host a web site without Chrome or Google DNS donating some huge percentage of data about my visitors to Google. I'm not sure the mechanism employed here, but I've set up 2 private web sites in the past year where upon having a Chrome user visit, Googlebot turned up within a day or so, despite all efforts to ensure the URL remained private
- I cannot visit Reddit and many similar sites with a cold web browser cache without revealing my use of the web site to Google, thanks to their AJAX library hosting
- A technical user has no difficulty blocking Urchin, but e-mail is a different issue entirely. I cannot find the article now, but one user reported 40% of all mail in his inbox passed through Google's servers at some point, even though he wasn't a Google user.
On the average day, whether I like it or not (and really I don't), I generate tens to hundreds of new records in Google's databases.