Facebook, Privacy, and Advertising

In 1-2 paragraphs, Conduct a news search online using the terms "privacy and Facebook." Take a moment to read some of the available articles, and consider how concepts of private and public information are different now versus six years ago (before the social media explosion). Has the change been for the better? Why or why not? What should the modern, social media savvy individual share with everyone and what, if anything, should they try to keep private?