How Google Is Collecting User Data?

Do you use as your primary search tool? If you leverage the power of Google search to give your business relevant search results, and if you use the Internet or any state of the art mobile device, then of course you use Google in some shape or form. FYI, as of March this year, Google has changed the way it collates information about its users. Keeping this in mind, how should you protect data Google may be collecting about you?