Facebook knows who you've been chatting with, even off the app.

SOCIAL MEDIA
Scientists are just beginning to understand "Facebook Addiction Disorder."
See less posts from people you barely know and more of the content you love.
Research shows that being constantly tethered to our phones makes us unhappy, but it's hard to break the habit. Here are three super-simple ways to minimize your stress without missing a text.
Birth cities and names of first pets are common security questions—and common quiz queries.
Facebook has strict rules when it comes to the name on your profile.
No, you can’t do anything about it. But knowledge is power, right?
Your mom was right: Spending more time chatting with friends online than in real life could be negatively affecting your health.
Have a sinking feeling you're losing friends on Facebook? There's a way to find out for sure.