Content Marketing
Newsletter Growth: The 3 Channels That Actually Work
Cross-promotions
Swap mentions with 5-10 complementary newsletters. 100-500 new subs per swap if audiences align. Best ROI by far.
Podcast guesting
Guest on aligned podcasts and offer a specific newsletter-only bonus. 50-200 subs per episode appearance.
Twitter/Threads threads
Viral threads that end with a specific newsletter CTA. Hit-or-miss but can deliver 1,000+ subs per hit.