The tech ecosystem that surrounds today's teens is fueling loneliness.
Why it matters: It's a dangerous environment for a generation that's already sad and stressed. And it's more difficult than ever for their parents, teachers and coaches to understand and help them.
Language learning app Duolingo killed off its plucky mascot, Duo the owl, this week — creating a social media marketing momentthat may have more sticking power than recent Super Bowl ads.
Why it matters: Duolingo has mastered not only helping people cultivatepolyglot skills, but also the art of storytelling marketing and pushing the envelope in a brand's online presence.