Top 8 Growth Strategies from HubSpot’s 2025 State of Newsletters Report

Substack publishers can learn from 400+ newsletter pros’ data by doubling down on personalization, embracing AI, and using social media strategically for growth—not just relying on email. Here are actionable steps for Substack creators looking to stay competitive in this fast-changing environment: 1.

Leverage LinkedIn and Facebook Distribution Prioritize sharing each edition on LinkedIn and Facebook, where 52% and 50% of creators respectively see greater reach and engagement than through email alone.

Build dedicated audience segments on these platforms and engage in newsletter-promoting discussions or groups relevant to your subject area.​ Here’s the type of content readers prefer most: 2.

Invest in Personalization and Demographics Actively tailor your content strategy based on your subscriber demographics—formatting, publishing schedule, and even tone should reflect the preferences of your core readers…