Lumosity - Discover what your mind can do. Improve memory, increase focus, and find calm - with the #1 brain training app. Get started now.
Brain Workshop - Brain Workshop is a open-source version of the dual n-back brain training exercise.
Cambridge Brain Sciences - Cambridge Brain Sciences Inc provides scientifically proven tools for the assessment of cognitive...
gbrainy - gbrainy is a brain teaser game and trainer to have fun and to keep your brain trained.
Human Benchmark - A web game to benchmark your brains.
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!