CNN Technology: It can be hard to keep up with the latest apps that kids are using. Just when you've figured out how to talk to your kids about Facebook, they've moved on to Instagram or Snapchat. But here's the deal: Even when new apps come along, adding new features such as the ability to disappear or track your location, they're often not that different from other apps. And if you know what to look for, you can help your kid avoid some common social media pitfalls such as drama, cyberbullying, and oversharing.