The Business of Email: How Substack Changed Everything

You probably don’t think of your inbox as part of the creator economy, but email is a big business, and Substack is leading the charge. In this episode, Colin and Samir sit down with Rachel Karten, writer of the Substack newsletter Link in Bio, which covers the world of social media and has grown to more than 105,000 subscribers. Rachel left her role at Bon Appétit to build her own business as an independent creator, and today she earns income through paid subscriptions and brand partnerships on Substack. Colin, Samir and Rachel break down how email newsletters became one of the most powerful tools in the creator economy and why Substack’s model of direct audience ownership is changing how writers, journalists, and creators make a living. Learn more about your ad choices. Visit megaphone.fm/adchoices

You can listen to The Business of Email: How Substack Changed Everything online on Radio and Podcast. Open the player on this page to stream the available audio.

The Business of Email: How Substack Changed Everything is an episode from The Colin and Samir Show by Colin and Samir.

This episode is 45:16 long.

This episode was published on Nov 5, 2025.

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