DNT is very timely

Hi all, 

A very very interesting and timely study from Timothy Libert from Annenberg 
School for Communication University of Pennsylvania:

https://timlibert.me/pdf/Libert-2015-Exposing_Hidden_Web_on__Million_Sites.pdf

I let the article talk: 
==
The most striking finding of this study is that 78.07% of websites in the 
Alexa top million initiate third-party HTTP requests to a Google-owned domain.
==

However, Google's privacy policy
http://www.google.com/intl/en/policies/privacy/

does not even mention Do Not Track. 

This seems striking. While Google is part of the tracking protection group, 
their last email is from 2013. 

It would be interesting to find out the current positioning of Google/Alphabet 
with respect to this study and with respect to DNT. 

 --Rigo