2026 Edition

Best Product Newsletters

Our curated selection of top product newsletters that accept sponsors. Updated for 2026.

Thunderbolt AI

Daily AI newsletter helping tech-savvy readers leverage AI, boost productivity, and elevate their careers.

Launch Llama

Weekly newsletter for founders, developers, and tech leaders discovering practical B2B SaaS, AI tools, and productivity platforms.

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Latestly AI

AI tool breakdowns, tutorials, comparisons, and news for professionals adopting AI tools.

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ApexQuant

Weekly AI systems and automation playbooks for agency owners and founders who want to scale lean without hiring bigger teams.

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SCALABLE

Weekly actionable insights for startup founders and venture builders, highlighting useful tools and resources.

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The Diff

One stealable product idea or growth play each week, with evidence from winning companies and the operator testing it in public.

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Projects of AI

2x/week deep-dive newsletter for founders, builders, and operators in AI — real stories behind companies and tools, not news or hype.

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Not Boring

Semi-weekly tech and startup strategy essays for founders, engineers, and product people.

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Superpower Daily

AI news, tools, and insights for builders, founders, operators, marketers, and business owners.

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Superhuman

Daily AI productivity newsletter for executives and skilled workers in tech, marketing, engineering, product, and finance.

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About this list

This curated list features the best product newsletters that accept sponsors. Each newsletter has been vetted to ensure they have an active sponsorship program or are open to partnerships.

Whether you're looking for newsletters to read or sponsor, Letterlist makes it easy to discover quality publications in the product space.

How we select newsletters

Newsletters on Letterlist are submitted by their operators and verified to accept sponsors. Featured newsletters have invested in premium placement to increase their visibility to potential sponsors.