Facebook is all about sharing.But if you value your privacy, using the service means deciding not only what you want to share, but also who gets to see it.In theory, you have a great deal of control over the audience for everything you put on the service, whether it is the photos of your family vacation or that moment of weakness when you passed along that Krispy Kreme doughnut ad. (Uh, I hid that from my timeline, right?)
http://www.nytimes.com/2014/01/30/technology/personaltech/on-facebook-deciding-who-knows-youre-a-dog.html