userinput.io - Get on-demand feedback for your app, website or idea. Learn how to improve by hearing real opinions.
Software Product Management Stack - Resources & tools to help you manage your software product
Upvoty - User feedback in 1 simple overview 🔥
The Product Management guide - A book on how to create and ship products that people love
Instabug for Product Managers - Collect and understand user feedback
Product Management Exercises - A repository of product manager job interview exercises