Let’s talk about Substack’s new reading app, and the moment in the life of a young tech company when its ambitions grow from niche service provider to a giant global platform. Platformer, from which ...

The newsletter platform Substack still isn’t turning a profit, even as its writers make millions. The newsletter platform Substack still isn’t turning a profit, even as its writers make millions. is a ...

Jim Acosta, the frequent Donald Trump antagonist who was all but pushed out by CNN earlier this year, may not be the type of person you’d suspect would be a hit on Substack. In fact, when he signed ...