Until recently, Google collected a plethora of your personal private data for targeted advertisements, all done largely without your knowledge. Google now offers you ways to limit how it uses your data.
Of course, you are free to fine tune your settings to meet your particular needs, but the recently disclosed privacy preferences go a long way towards keeping the prying eyes of Google at bay.
As Google warns, however, some functions you might like, such as restaurant suggestions and news personalization, also will cease to work as well as before.
For each of the privacy settings, you will need to sign in. Here is a list of how to shut off the more consequential settings.