Lumosity - Discover what your mind can do. Improve memory, increase focus, and find calm - with the #1 brain training app. Get started now.
MentalUP - Entertain and test your children with >120 games
Brain Workshop - Brain Workshop is a open-source version of the dual n-back brain training exercise.
ABCs of Product Management - Children's book about Product Management
Brainturk - Improve your brain performance by playing 40 + brain games designed by brain researchers and psychologists based on principles of neuroplasticy. It is free to start playing online. Challenge your brain!
YUMI - YUMI (Your USB Multiboot Installer), is a tool that allows you to boot multiple ISO files from one USB drive.