Link in Bio

The "best" marketing newsletter depends entirely on your daily role—whether you are a performance marketer running paid ads, a content strategist, a startup founder looking for growth, or a social media manager.

The absolute top marketing newsletters that industry practitioners actually open, read, and use are categorized below by their focus areas.

1. The Best Daily Newsletters (To Stay in the Loop)

These are your daily morning reads to keep you informed on industry shifts, algorithm changes, and major brand campaigns without taking up too much of your time.

• Marketing Brew
  • The Vibe: Witty, engaging, and highly professional.
  • Best For: Brand marketers, agency professionals, and advertisers who want to stay on top of the latest ad tech, campaign trends, and media news.
  • Why people read it: Part of the Morning Brew family, it translates dry industry reporting (like changes in privacy regulations or Super Bowl ad reviews) into highly entertaining daily digests.
• Stacked Marketer
  • The Vibe: No-nonsense, highly tactical, and fast-paced.
  • Best For: Media buyers, DTC (Direct-to-Consumer) brand owners, and digital marketers working heavily with paid social (Meta/Google Ads), SEO, and e-commerce.
  • Why people read it: It delivers the latest platform updates, algorithm changes, and actionable marketing tips in a 5-to-7-minute read. If an ad platform breaks or introduces a new feature, Stacked Marketer is usually the first to break down what it means for your wallet.

2. The Best Growth & Startup Playbooks

If you are looking for long-form, highly detailed case studies and step-by-step guides on how to scale a business, these are the gold standards.

• The Growth Newsletter (by Demand Curve)
  • The Vibe: Masterclass-level deep dives.
  • Best For: Startup founders, B2B marketers, and growth operators.
  • Why people read it: Demand Curve doesn't write high-level theory. Instead, they break down exactly how modern tech companies acquire users, optimize landing pages, and scale acquisition channels. Expect visual teardowns and frameworks you can steal for your own business.
• Lenny’s Newsletter (by Lenny Rachitsky)
  • The Vibe: Extremely thorough, community-driven, and authoritative.
  • Best For: Product managers, growth marketers, and Go-To-Market (GTM) leaders.
  • Why people read it: Boasting over 1 million subscribers, Lenny’s Newsletter is the most respected publication for Product-Led Growth (PLG). He answers real reader questions with in-depth interviews and data-heavy breakdowns of how companies like Airbnb, Figma, and HubSpot scaled.

3. The Best for Copywriting & Psychology

Marketing is ultimately about understanding humans and writing things that make them take action. These newsletters focus heavily on the creative and behavioral side of marketing.

• Marketing Examples (by Harry Dry)
  • The Vibe: 100% visual, zero fluff.
  • Best For: Copywriters, landing page designers, and conversion rate optimization (CRO) specialists.
  • Why people read it: Harry Dry is famous for his side-by-side, visual comparisons of "bad copy vs. good copy". Every newsletter is incredibly short, visually satisfying, and teaches you a concrete copywriting or marketing principle in under two minutes.
• Science Says (formerly Ariyh, by Thomas McKinlay)
  • The Vibe: Evidence-based, academic, yet incredibly practical.
  • Best For: Data-driven marketers, strategists, and psychology nerds.
  • Why people read it: McKinlay sifts through thousands of peer-reviewed academic studies on consumer behavior and packages the findings into 3-minute newsletters. Instead of relying on marketing "gurus," you get science-backed evidence on exactly what colors, fonts, pricing structures, and messaging actually convert.

4. The Best for Social Media & Content

If you make a living creating content or managing brand channels, this is the most active and supportive corner of the marketing internet.

• Link in Bio (by Rachel Karten)
  • The Vibe: Empathetic, culturally plugged-in, and highly relatable.
  • Best For: Social media managers, content creators, and brand directors.
  • Why people read it: Written by the former head of social at Bon Appétit, this Substack is the ultimate community for the people "who actually press post" on brand accounts. It features interviews with the masterminds behind viral brand accounts, breakdowns of fast-moving internet trends, and career advice for managing social media burnout.

Summary: Which one should you subscribe to first?

If you want the best marketing newsletters people actually use, the safest bets are Marketing Brew, Lenny’s Newsletter, Demand Curve, Stacked Marketer, and Moz Top 10 because they repeatedly show up in current roundups as widely read, practical, and role-specific picks.

A simple way to choose is by use case:

If you want only the most broadly useful options, I’d start with Marketing Brew for daily news, Demand Curve for actionable growth tactics, and Lenny’s Newsletter for higher-level strategy and operator lessons.

If you want, I can also narrow this to:

• best free newsletters only
• best for B2B marketers
• best for founders/startups
• best for email marketing and copywriting