MentalUP - Entertain and test your children with >120 games
Intercom on Product Management - The ultimate resource for aspiring product managers
ABCs of Product Management - Children's book about Product Management
Product School - The global leader in product management training
YUMI - YUMI (Your USB Multiboot Installer), is a tool that allows you to boot multiple ISO files from one USB drive.
The Product Management guide - A book on how to create and ship products that people love