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 ...

The round values the newsletter platform at $1.1 billion. By Caitlin Huston Business Writer Substack has raised $100 million in funding as the newsletter platform continues to position itself as a ...