As a child, I remember hearing the ominous male voice on the TV commercial asking parents: It’s 10 PM. Do you know where your children are?

These days, it’s a little easier to track our kids whereabouts with the help of smart phones and GPS. What we parents don’t always know, however, is where our kids our “hanging out” online.

I’ll be the first to admit that I can’t keep track of my kids’ Internet and social media use. I thought I was doing a stand-up job when I got my teenage son to “friend” me on Facebook a few months ago, only to realize that he hasn’t been on Facebook in over a year.

So where is he spending his time online?

According to a study of social media usage by 16-18 year olds, teens today are moving away from Facebook and onto “cooler” sites like Instagram (which is, granted, owned by Facebook), Snapchat, Vine and Kik. A majority of teens also use simple text messaging on a daily basis.