Lia Haberman is the author of the popular ICYMI newsletter sharing weekly platform updates and social content trends. She’s been tapped for social media insights by brands such as Google, Robert Half, and AT&T; led social branding and creator workshops for Disney's Creator Lab, Macy's Style Crew and YouTubers Colin and Samir’s Creator Startup, and teaches social media and influencer marketing at UCLA Extension. When she's not working, she's scrolling TikTok and Instagram looking for new places to eat in Los Angeles.
Lizzo, Charli xcx, and Lily Allen are a few of the many artists and celebrities who’ve jumped in to the newsletter scene recently. And brands are right behind them: Rare Beauty, The RealReal, Tory Burch — even traditional media outlets like New York Magazine — are tapping into the newsletter renaissance to reach people.
What used to be a niche medium for tech insiders and writers is now where culture is happening — whether it’s through Substack, Beehiiv, LinkedIn, or any other platform powering this shift.
But the real story isn’t just who is joining. It’s why they’re joining.
Newsletters reflect a bigger shift toward more intimate, intentional, and owned ways of showing up online. And people are hungry for it.
In a recent ICYMI subscriber survey, nearly two-thirds of marketers (63.4%) said newsletters are the next channel they want to explore in 2026. And 1 in 10 agencies are already using Substack in influencer campaigns, according to CreatorIQ’s 2026 State of Creator Marketing report.
The momentum is real — and it’s rewriting the rules of content strategy.


