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 ...

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 ...

Nick Norwitz graduated from Harvard Medical School last May. By January, he had already grown his paying Substack subscribers nearly 500 percent, taking the total to 5,200, while registered readers ...