Do you use Google? These days the question sounds almost absurd. If you use the Internet, or an iPhone, or an Android phone, or a Kindle or an iPad, then of course you use Google in some shape or form. And if you take a keen interest in how your personal information is used, you probably know that on March 1, 2012, the world's largest collector of personal data, Google, changed the way it uses information about you. But how big of a deal is this? And what, if anything, should you be doing differently today to protect data that Google may be collecting about you?