The social media network is still a giant, with more than 1 billion users worldwide, but its cool factor has taken a hit.
• 94 percent of teens who use social media have Facebook profiles, but researchers have concluded that they're losing interest in the site.
• 67 percent of American adult Internet users have a Facebook profile. It's not just young adults — 57 percent of those ages 50 to 64 use Facebook.
• Teens are turning to: Twitter, Instagram and YouTube; blogging platform Tumblr; messaging apps Snapchat and Kik; and the Q-and-A network ask.fm.
Sources: Pew Research Center, Piper Jaffray & Co.
