Storiella - Storiella has been founded by two former teachers who are now parents.
Intercom on Product Management - The ultimate resource for aspiring product managers
Hullabalu - Interactive stories for kids
The Product Management guide - A book on how to create and ship products that people love
YUMI - YUMI (Your USB Multiboot Installer), is a tool that allows you to boot multiple ISO files from one USB drive.
Software Product Management Stack - Resources & tools to help you manage your software product