As ironic as it may seem, since Google knows more about us than even the NSA, Google has stepped up with a new tool called My Account to help people control their online privacy. If you have been lamenting the loss of personal privacy in the Internet age, here at last is something you can do about it. It may not address all your concerns, but here is a start.
You will be able to control Sign-in and Security, Personal Information and Privacy, and Account Preferences
Go ahead and take a look. I know I will.