So let's say for a moment this isn't really a jab at MS's arch enemy Google. I go to Amazon. I browse tools, and specific ones. I come back later, and there are my recommendations of tools I browsed.
Is this the tracking we are against? Or is it all site agnostic? Do people know they are tracked in apple stores? Newegg.com? Anything with google analytics? Is that there the issue? Or is it when I'm logged in vs. logged out?