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
Pramp for Product Managers - Practice product management mock interviews with other PMs
Product School - The global leader in product management training
The Product Manifesto - Product Managers face the biggest challenges of our day, which is why our community needs a common set of product principles.