Everything.PM - 300+ resources & tools for PMs, sorted by votes
GrowthList - A crowd-sourced list of growth hacks
PM Starter Pack - Practical guide on how to get started in product management
GrowthHackers Projects - Growth collaboration software for teams 📈
Product Manager Handbook - Interviews w/ product managers + weekly newsletter
Marketing Examples - A gallery of real world marketing case studies. Updated every day.