Jeremy Caplan is a journalist, educator, and newsletter creator who built Wonder Tools into one of Substack's most-recommended productivity and AI tools newsletters, with 85,000+ subscribers in 201 countries. He is Director of Teaching and Learning at CUNY's Craig Newmark Graduate School of Journalism, where he also runs the Entrepreneurial Journalism Creators Program. A Princeton and dual-Columbia grad, former Time magazine reporter, and one-time international concertmaster, Caplan has spent over a decade helping journalists and knowledge workers find tools that actually save time.
Justin Gage is the founder and writer of Technically, a newsletter that makes software and AI concepts accessible to non-engineers. With 72,000+ subscribers on Substack, he built one of the most respected tech-explainer newsletters from scratch - conceived during a 7-hour Tokyo airport layover - growing it without paid ads through authentic writing and word-of-mouth. By day, he serves as VP of Developer Marketing at Amplify Partners, an early-stage VC firm focused on technical founders.
Paweł Huryn is a Warsaw-based product management expert, creator of The Product Compass - a Substack newsletter with 133,000+ subscribers ranked #1 in product management worldwide by Favikon. A former software developer turned CPO turned full-time educator, he brings 15+ years of hands-on product experience to weekly deep-dives on AI product management, strategy, and discovery. His philosophy: build it first, test it, then teach it.
Tomas Pueyo is a Franco-Spanish writer, strategist, and newsletter creator best known for his wildly viral COVID-19 articles that reached 60 million readers in 2020 and for his Substack newsletter Uncharted Territories, where he explores tech, geopolitics, AI, and the forces shaping civilization. A Stanford MBA and former Silicon Valley executive (Course Hero VP of Growth, Ankorstore CPO), he voluntarily cut his income by 80% to write full-time - building a 123,000+ subscriber audience without spending a dollar on advertising.
David Perell is a writer, educator, and founder best known for Write of Passage, the online writing course that turned thousands of lurkers into published voices. Armed with 474,000+ Twitter followers and a newsletter empire, he spent six years teaching people to think and write better on the internet - then stopped cold in 2025 when AI upended his mental model of education. He is now figuring out what comes next, in public, as always.
Scott Galloway is a serial entrepreneur, NYU Stern professor, five-time New York Times bestselling author, and one of the most outspoken voices in business and tech. Known for his unfiltered analysis of Big Tech, wealth inequality, and generational economics, he built and sold L2 Inc to Gartner for $155 million, co-hosts the Pivot podcast with Kara Swisher, writes the Webby Award-winning No Mercy / No Malice newsletter, and reaches millions through his Prof G Pod. His books - from The Four to The Algebra of Wealth - have made him a trusted, provocative guide to navigating capitalism in the 21st century.
Sharon McMahon is 'America's Government Teacher' - a former public school educator turned media force who built a nonpartisan civics empire from Duluth, Minnesota. Known for breaking down complex government topics with facts and zero spin, she went viral in 2020 with a kitchen-table explanation of the Electoral College, and never looked back. Today she hosts the top-1% podcast 'Here's Where It Gets Interesting,' writes The Preamble newsletter on Substack, authored the #1 NYT bestseller 'The Small and the Mighty,' and has raised nearly $14 million for charitable causes through her community of 'Governerds.'
Wes Kao is an executive coach, co-founder of Maven (the cohort-based learning platform backed by a16z and First Round), and co-creator of the altMBA with Seth Godin. She pioneered the cohort-based course category, scaled altMBA to 550 cities in 45 countries, and now helps senior tech operators at companies like Google, Amazon, and Shopify sharpen their executive communication and influence. Her biweekly newsletter reaches 300,000+ readers across platforms.
Adam Wathan is a Canadian developer, entrepreneur, and the creator of Tailwind CSS - the utility-first CSS framework used by millions of developers worldwide. As CEO of Tailwind Labs, he turned a side-project experiment into a multi-million dollar business encompassing Tailwind UI, Headless UI, and an ecosystem of developer tools. A college dropout turned prolific course creator, he built his reputation first through 'Refactoring to Collections' and 'Refactoring UI' (co-authored with Steve Schoger), generating over $2.5 million in book sales alone. In January 2026, he made headlines again when AI's disruption of developer documentation led to dramatic revenue declines and significant layoffs at Tailwind Labs, prompting major sponsorships from Vercel, Google, and others rallying to support what they called 'foundational web infrastructure.'
Daniel Bourke is an Australian machine learning engineer, educator, and content creator who teaches over 230,000 students worldwide through the Zero to Mastery Academy. Operating under the brand 'mrdbourke', he built a self-designed AI education path from a film degree and zero coding experience, and now creates courses on PyTorch, TensorFlow, and Hugging Face. He co-founded Nutrify, an AI-powered food tracking app, with his brother Joshua, and published his debut novel 'Charlie Walks' in 2024. His newsletter 'Eat, Move, Learn, Make' blends personal philosophy with technical insight.
Elvis Saravia is the co-founder and lead AI researcher at DAIR.AI, a mission-driven organization democratizing AI research and education worldwide. Based in Belize, he is the author of the Prompt Engineering Guide - one of the most widely read AI resources on the internet with 73,000+ GitHub stars and over 3 million learners - and publishes the AI Agents Weekly newsletter. A PhD graduate from National Tsing Hua University in Taiwan, he has contributed to landmark AI projects including the Galactica large language model at Meta AI, and is known for bridging rigorous research with accessible, production-minded education for the next generation of AI builders.
YouLearn is an AI-powered personalized tutoring platform built by students, for students. Founded by three college friends frustrated with outdated lecture videos and generic AI tools, YouLearn transforms any learning material - PDFs, YouTube videos, lecture slides, even photos - into concise notes, adaptive quizzes, and an interactive AI tutor. With 2M+ users globally, $770K ARR, and backing from Y Combinator's Spring 2025 batch, YouLearn is building what they call a modern-day Aristotle: a lifelong AI tutor that grows alongside each student.
Mark Erikson is the primary maintainer of Redux and creator of Redux Toolkit - the tools that power state management in millions of React applications worldwide. Known online as @acemarke, he became the de facto keeper of Redux in 2016 when Dan Abramov handed off the project. Since then, he has rebuilt Redux's documentation from the ground up, designed the hooks API in React-Redux, and created Redux Toolkit to eliminate the boilerplate that once made Redux notorious. He is a Senior Front-End Engineer at Replay.io and a tireless community fixture - answering questions on Discord, Reddit, Bluesky, and anywhere else developers congregate online.
Scott Tolinski is a web developer, podcaster, and educator best known as co-host of Syntax.fm - widely regarded as the most popular web development podcast in the world. He founded Level Up Tutorials in 2012 after a breakdancing injury sidelined him, building it into a library of 2,000+ video tutorials with 350,000+ subscribers before it was acquired by Sentry. Now serving as Executive Producer at Sentry, Scott co-hosts Syntax alongside Wes Bos, releasing two episodes per week covering JavaScript, SvelteKit, CSS, and modern web development. Outside the keyboard, he is a dedicated B-boy (breakdancer) and avid snowboarder based in Denver, Colorado.
Vik Paruchuri is the founder and CEO of Datalab, an AI startup building small, efficient foundation models for document intelligence. A self-taught ML engineer who majored in American History, he previously founded Dataquest - an online learning platform that taught data skills to over 1 million students. His open-source projects (Marker, Surya, Chandra OCR) have earned thousands of GitHub stars and benchmark-topping accuracy scores. He publishes 'The Vik Letter' newsletter covering semiconductors and tech.
Wes Bos is a full-stack JavaScript developer, educator, and course creator from Hamilton, Ontario, Canada. He has taught over 500,000 developers worldwide through his free and paid online courses covering JavaScript, CSS, React, and Node.js. His flagship free course JavaScript30 has over 682,000 enrollments. He co-hosts the popular web development podcast Syntax.fm with Scott Tolinski and CJ Reynolds. His course business has generated over $10M in revenue, largely as a solo operation with a free-tier marketing strategy that has built a massive, loyal audience.
Sheba Najmi is a Stanford-trained UX leader, civic technologist, and founder of Code for Pakistan — the country's first civic tech nonprofit. Over two decades she has shaped digital products for hundreds of millions of users (Yahoo Mail, LinkedIn, FreeWill) while simultaneously running a parallel mission: using open-source technology to make Pakistani government services work for ordinary people. Her work has served 2.1 million citizens, trained 600 government officials, and opened 6,000 public datasets. In 2024 she received the HUM Women Leaders Award for her contributions to civic innovation in Pakistan.