Xobin - Most Comprehesive Pre-Employment skills testing and Psychometric Assessment Platform.
Software Product Management Stack - Resources & tools to help you manage your software product
Speechapp - The simplest way to practice for your next job interview
The Product Management guide - A book on how to create and ship products that people love
Pramp for Product Managers - Practice product management mock interviews with other PMs
Product Management Exercises - A repository of product manager job interview exercises