Intercom on Product Management - The ultimate resource for aspiring product managers
The Product Management guide - A book on how to create and ship products that people love
The Product Manifesto - Product Managers face the biggest challenges of our day, which is why our community needs a common set of product principles.
Software Product Management Stack - Resources & tools to help you manage your software product
Product Management Exercises - A repository of product manager job interview exercises
Product School - The global leader in product management training