Software Product Management Stack - Resources & tools to help you manage your software product
InterviewBuddy - Replace fear with confidence
The Product Management guide - A book on how to create and ship products that people love
The PM Interview - Practice PM Interview Questions (w/ timer).
Product Management Exercises - A repository of product manager job interview exercises
The Product Manifesto - Product Managers face the biggest challenges of our day, which is why our community needs a common set of product principles.