Spacedoo - Short actionable marketing hacks
Growth Hacker Marketing - Ryan Holiday's book, re-released and expanded
Top of the Lyne - Growth strategies and the weekly news from the best product-led SaaS companies (Figma, Calendly, Notion, and more) for founders and growth leaders!
Primer - CSS toolkit and guidelines that power GitHub
GrowthHackList - 100+ curated growth hacks for makers + early stage startups
Just a Line - Make simple drawings in AR, by Google