AP Photo

A few months ago, my fifteen-year-old sister told me that Snapchat was going to be the next Instagram. Many months before that she told me that Instagram was being used by her peers as much as Facebook. Both times I snickered.

Learning from past mistakes, I took some time over the holiday break to ask my sister many, many questions about how her and her friends are using technology. Below I’ve shared some of the more interesting observations about Instragram, Facebook, Instant Messaging, Snapchat, Tumblr, Twitter, and FaceTime. I hope you’ll find them as informative, surprising, and humbling as I did.