Google Has Quietly Dropped Ban on Personally Identifiable Web Tracking
If you really care about your privacy it’s time to ditch Google. I did sometime ago and am doing just fine without it.
Julia Angwin, Writing for ProPublica
The practical result of the change is that the DoubleClick ads that follow people around on the web may now be customized to them based on the keywords they used in their Gmail. It also means that Google could now, if it wished to, build a complete portrait of a user by name, based on everything they write in email, every website they visit and the searches they conduct.