Facebook is an online social networking site. Although American teens think Facebook has lost its cool factor, they still continue to use it as much as ever.
A survey released by Forrester Research found 78% of US teenagers use Facebook, a figure unchanged from 2014.
That's more than any other 'social' site except the video-sharing service YouTube, used by 80% of teens.
The report said, "Sure, young people don't think Facebook is cool - but that doesn't mean they've stopped using it."
Forrester analysts said, "Facebook generates more hyper-usage than any other social site. A third of teen Facebook users say they're on the site all the time, far more than any other social site. Facebook is a key way for young people to keep in touch with friends."
The report said, "The billion-plus member social network can be an important tool for marketers who want to connect with youth, but they need to finetune their approach with tools such as social relationship marketing to build brand awareness and loyalty."
The research firm surveyed 4,485 teens aged 12 to 17 years in April 2015. The margin of error was estimated at 1.5% points.