Projectile - Features:- Install or update your project dependencies- Run your project scripts- Kanban board- Support monorepo.

Product School - The global leader in product management training

GitHub Project Management - No-fluff guide to building a collaborative development team

The Product Manifesto - Product Managers face the biggest challenges of our day, which is why our community needs a common set of product principles.

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.

Intercom on Product Management - The ultimate resource for aspiring product managers