Discover the fastest-growing newsletters
The newsletters winning attention right now in AI, tech, health & productivity, and finance & investing — the ones worth reading, partnering with, and learning from. Hand-picked and refreshed by our editors every week.
📈 This week's ranked reports
Top 10 Fastest-Growing AI Newsletters
The AI newsletters carrying the most audience momentum into October — the dailies still absorbing the bulk of the category's new sign-ups, plus the practitioner reads whose engagement outruns their list size.
Read the ranking →Top 10 Fastest-Growing Tech Newsletters
The tech and developer newsletters with the strongest audience momentum this week — the networks absorbing the category's reach budgets, plus the independent engineering reads commanding premium CPMs on credibility alone.
Read the ranking →Top 10 Fastest-Growing Health & Productivity Newsletters
The health, wellness and productivity newsletters with the most audience momentum this week — including the lists with the strongest reported sponsor re-book rates in the category.
Read the ranking →Top 10 Fastest-Growing Finance & Investing Newsletters
The finance and investing newsletters with the most audience momentum this week — the free dailies absorbing the category's reach budgets, plus the analyst reads that reach the people who actually allocate capital.
Read the ranking →We know which newsletters sponsors actually rebook
Beyond reach, we maintain a database of the newsletters that earn the most rebookings and repeat sponsorships — the truest signal that an audience converts. We track it across every product category, so we can match your offer to the newsletters where that exact audience already pays off.
Book a newsletter sponsorship strategy call →AI (44)
The Rundown AI
The largest daily AI newsletter — model launches, tools, and applied use cases.
Subscribe ↗The AI Daily Brief
Nathaniel Whittemore's daily news and analysis on what's moving in AI.
Subscribe ↗Marketing AI Institute
Weekly read on applying AI to marketing, from Paul Roetzer's team.
Subscribe ↗There's An AI For That
New AI tools and product launches, curated for builders and marketers.
Subscribe ↗Marketing Against the Grain
HubSpot's Kipp Bodnar & Kieran Flanagan on AI-era marketing tactics.
Subscribe ↗Tech (28)
The Pragmatic Engineer
The #1 tech Substack — big-tech engineering, hiring, and careers.
Subscribe ↗Health & Productivity (28)
Finance & Investing (28)
Find the newsletters your audience already trusts
We'll map your product to the newsletters with the strongest rebooking and repeat-sponsorship track record for your category — so your next campaign lands with an audience that's a perfect fit.
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