Twitterでは4月7日ごろから、メルマガ配信サービスSubstackのコンテンツリンクを含むツイートを制限されていると、多数のユーザーが報告した。Substack.comへのリンクのツイートは可能だが、そのツイートをRTまたはいいね！しようとすると「このツイートでは ...

Substack has hired former Roku and PayPal executive Dan Robbins as its first head of brand sponsorships, he exclusively tells ...

The newsletter platform is expanding beyond paid subscriptions, signing Uber, T-Mobile, Balenciaga, and Yahoo Scout as ...

As newsletter upstart Substack emerges from a stellar year, co-founder and CEO Chris Best said he wants the platform to become a one-step shop for writers — and to continue being a space for freedom ...

Over the past few days, a war between subscription-based blogging website Substack and microblogging platform Twitter has been brewing — with the CEOs of both platforms publicly responding to the ...

PCWorld reports that Substack experienced a data breach in October 2025, exposing email addresses and phone numbers of approximately 697,000 users. The company discovered the security flaw on February ...

Substack CEO Chris Best says AI could flood the internet with slop — or give creators leverage to spark a cultural renaissance.Stephen McCarthy/Sportsfile for Collision via Getty Images AI could turn ...