For kids and teens, social media is an essential part of their lives, much the way telephones were important to us at their age.
About 90% of teens have used some form of social media and 75% have a profile on a social networking site, experts say.
These numbers are way up from just a few years ago, and there's almost no chance of them ever coming down again.
This isn't necessarily a reason for concern. For most teens, there are plenty of good things about social media. But there are also many potential dangers and things that you want your kids to avoid. Kids don't always make the smartest choices when they post something to a site like Facebook or YouTube, and sometimes this can lead to problems.