Product School - The global leader in product management training
The Product Management guide - A book on how to create and ship products that people love
The Product Folks - A volunteer-led community of product managers and makers
Xobin - Most Comprehesive Pre-Employment skills testing and Psychometric Assessment Platform.
Software Product Management Stack - Resources & tools to help you manage your software product
Intercom on Product Management - The ultimate resource for aspiring product managers