The Product Folks - A volunteer-led community of product managers and makers
The Product Management guide - A book on how to create and ship products that people love
The Data-Driven Product Manager - 8 tips to help smart PMs make data work for them
Xobin - Most Comprehesive Pre-Employment skills testing and Psychometric Assessment Platform.
Sunsama - Calendar and scheduling for teams
Intercom on Product Management - The ultimate resource for aspiring product managers