Often times you will see people post a "chain post" in Facebook asking you to disable this feature or that feature in order to protect somene's privacy.  People ask us about privacy on Facebook all the time, so let me be clear.  

As far as privacy in social media goes...

YOU HAVE NONE.

Those agreements you sign digitally when you register for Facebook or other social media basically enable them to do whatever they want with what you upload or post,   In fact, in many instances, it no longer even belongs to you.  Privacy on social media is a complete illusion.  

In fact, with respect to Facebook particularly, I have to remind people, "You are not Facebook's client.  Facebook's advertisers are their clients, and they use your information to get you to purchase or contact their clients.  Facebook is in business for one reason--  to make money.  Without that, Facebook will not exist.  It would be nice to think that they have some elevated sense of providing electronic community to make it a better world, but the reality is, like most any other website, it is a business, and without money that business will not exist.  Realize and know that Facebook is using you to make money with their clients.  

So if you are going to use social media, know this.  You have no privacy.  If this upsets you, you need to get used to it, because privacy is gone in every area of life.  You can be tracked through your money card, through the cameras on the highways, through your cell phone, through the video cameras in Wal Mart, and even GPS tracking devices that insurance companies want you to install on your car.  To be completely private is nearly impossible, but it is still necessary to go in with your eyes open with respect to technology and social media.  Privacy no longer exists.  

If you want a little debrief on Facebook particularly, this article showed up on Yahoo today.

http://smallbusiness.yahoo.com/advisor/using-facebook-gives-no-privacy-not-really-215002021.html

Be vigilant and know what you are getting into.
Blessings.

John