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
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Riter
Project management & team collaboration tool
Software Product Management Stack
Resources & tools to help you manage your software product
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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.