It turns out that if you have an active customer audience invested in the long-term viability and success of your platform, you can crowdfund a venture-sized extension round. Substack, a ...

Substack didn’t invent the paid newsletter, but the startup’s early success with the model is enticing previous backers to more than double down on the media startup. The Exchange explores startups, ...

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 ...