We keep an eye out for the most interesting stories about Labby subjects: digital media, startups, the web, journalism, strategy, and more. Here’s some of what we’ve seen lately.

The Teamsters, one of the nation’s largest and most diverse unions with 1.3 million members, unveiled a Substack newsletter Monday, becoming the first major union to use the online forum to reach ...

Substack data breach exposed user email addresses and phone numbers for months before CEO Chris Best confirmed the October ...

When a Substack executive approached former Vanity Fair and New Yorker editor Tina Brown about starting a newsletter on the emerging platform, she was hesitant to join. These days, she’s all in, ...

Prediction market Polymarket has announced a partnership with Substack to enable authors on the platform to seamlessly ...