Microsoft isn't pulling any punches with the adverts:
"The way they’re doing it is making it harder for you to maintain control of your personal information. Why are they so interested in doing this that they would risk this kind of backlash? One logical reason: Every data point they collect and connect to you increases how valuable you are to an advertiser."
Google has attempted to clarify some of the worries, but has not yet addressed the concerns over the sharing of activities across all Google's products. Microsoft says the changes make it harder for "people to stay in control of their own information," and the company is voicing its own "concerns" through full page newspaper articles, seen below, while advertising rival services like Hotmail, Bing, Office 365 and Internet Explorer.
(Click to enlarge)