GitHub Project Management
No-fluff guide to building a collaborative development team
18 Alternatives To GitHub Project Management
Instabug for Product Managers
Collect and understand user feedback
Intercom on Product Management
The ultimate resource for aspiring product managers
Riter
Project management & team collaboration tool
Software Product Management Stack
Resources & tools to help you manage your software product
Trello
Infinitely flexible. Incredibly easy to use. Great mobile apps. It’s free. Trello keeps track of everything, from the big picture to the minute details.