Facebook remains the most used social media site among American teens ages 13 to 17 with 71% of all teens using the site, even as half of teens use Instagram and four-in-ten use Snapchat. 71% of teens use more than one social network site. Teens are diversifying their social network site use. A majority of teens — 71% — report using more than one social network site out of the seven platform options they were asked about. Among the 22% of teens who only use one site, 66% use Facebook, 13% use Google+, 13% use Instagram and 3% use Snapchat. This study uses a somewhat different method than Pew Research Center’s previous reports on teens.