Product School - The global leader in product management training
Software Product Management Stack - Resources & tools to help you manage your software product
Product Management Exercises - A repository of product manager job interview exercises
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
The Hypergrowth Network - Get advice from the best go-to-market leaders in tech
Better Product Manager - Experience the life of a PM through these tests