Hayley Tsukayama, The Washington Post:

"Google’s decision to unify 60 of its services under one privacy policy has set off renewed interest in how, exactly, Google account holders have their privacy settings configured. The data integration component of the company’s new policy governs mostly what your Google accounts share with each other, and can’t be configured service by service. But Google users have control over some of what they share with the company itself through their accounts." (Google, Web)