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 ...

Newsletter and publishing platform Substack announced $100 million in Series C funding, led by technology investment firm BOND and Peter Chernin’s The Chernin Group (TCG). Also participating in ...

Substack co-founder Hamish McKenzie says that creators jumping ship from 'mainstream media' like Jim Acosta, Joy Reid and Mehdi Hasan are a big driver of the growth. By Alex Weprin Senior Editor ...

Substack has reached more than 5 million paid subscriptions for the first time, the company said this week. The updated audience total comes just four months after the digital journalism and content ...