Brick By Brick - A free guide to building awesome communities
Software Product Management Stack - Resources & tools to help you manage your software product
The On Deck Fellowship - An 8-week program for 100 of the best early-stage founders
The Product Management guide - A book on how to create and ship products that people love
Telescope - Telescope is an open-source app that lets you easily set up your own online community.
Product Management Exercises - A repository of product manager job interview exercises