Sites like zenithwithin.com

A Substack newsletter by Paul von Zielbauer on strength training, fitness, nutrition and longevity, with video demonstrations

Joel Salinas's Substack newsletter on adopting AI in nonprofit and small business leadership, with prompts and frameworks

The Product Compass, a product management and AI newsletter, course and talks by Paweł Huryn

Davide Piffer's website and PifferPilfer Substack newsletter on ancient DNA, human variation, polygenic scores and population genetics

Unplugged, a Substack newsletter by Yana G.Y. on building paid subscriber revenue with AI tools and automations

The Freedom Corner, a Substack newsletter of independent news and liberty-focused commentary by journalist Peter Imanuelsen, also known as PeterSweden

The Free Press, a news and commentary publication with investigative stories, essays and podcasts by Bari Weiss and contributors

Astral Codex Ten, a Substack blog of essays on science, philosophy and culture by Scott Alexander

Lenny Rachitsky's newsletter on product management, growth, and career advice for product leaders and founders

A Substack newsletter by Jon Haidt and team on how technology, especially phones, is reshaping society and how to respond

A podcast of long-form interviews with intellectuals and researchers, hosted by Dwarkesh Patel

An English-language online news outlet covering Ukraine, Russia and Eastern Europe, with daily news reports and features

Universe Today is an English-language online news blog covering space and astronomy research, with articles by staff writers such as Matthew Williams and Evan Gough