Product School - The global leader in product management training
The Product Folks - A volunteer-led community of product managers and makers
Product Managers Job Satisfaction - How to become a better product manager
The Product Management guide - A book on how to create and ship products that people love
Recurring Payments by Decentro - A 10X simpler and intuitive API solution for debiting payments from your customers' bank accounts in a recurring manner.
Intercom on Product Management - The ultimate resource for aspiring product managers