Software Product Management Stack - Resources & tools to help you manage your software product
GrowthHackList - 100+ curated growth hacks for makers + early stage startups
The Product Management guide - A book on how to create and ship products that people love
Growth Hacker Marketing - Ryan Holiday's book, re-released and expanded
Product Management Exercises - A repository of product manager job interview exercises
Ryan Holiday - We Invest $500k in Sci-Fi Founders.