Previous job: New Republic staff writer. Substack gig: Heated, a popular newsletter about climate change that she launched in 2019 after almost a decade working for traditional publications. One goal: ...

Substack is having a moment. Since launching in 2017, the publishing platform that's a mix of blog and newsletter has emerged as the website du jour for musicians and celebrities. Largely known as a ...

Substack, originally a newsletter service, says its app now has millions of users interacting with its creators. By Benjamin Mullin and Jessica Testa Substack began its life as a buzzy newsletter ...