Everything.PM - 300+ resources & tools for PMs, sorted by votes
Look at that SaaS - Inspiration and resources for SaaS founders
PM Starter Pack - Practical guide on how to get started in product management
Good Sales Emails - Best sales emails from great companies
Product Manager Handbook - Interviews w/ product managers + weekly newsletter
Startup Stash - A curated directory of 400 resources & tools for startups