Everything.PM - 300+ resources & tools for PMs, sorted by votes
Triplebyte - Hire engineers by measuring their ability, not credentials
PM Starter Pack - Practical guide on how to get started in product management
YouTeam - YouTeam is a new, smarter way to outsource.
Product Manager Handbook - Interviews w/ product managers + weekly newsletter
Learn by AngelList - Venture Education Center by AngelList