An hour of code
Spend an hour learning to code all manner of different things
Isle of Tune
An amazing music generating site here you create a virtual town and road system where the cars that drive around create the music by interacting with the items in your town. I loved it.
Design, and make your own simple games. I also really liked this one.
Fantastic site with access to lots of curriculum areas.
Simple website that teaches coding through drag and drop\
117 different games to improve typing speed and accuracy