In a nutshell, a computer programming learning tool that operates like a shell, compiling javascript in real time to a browser simulation below. Very powerful collaborative tools make this a fantastic learning tool as two programmers can work to solve a problem with the same code in front of both of them, at the same time. All projects can be forked and shared.
I would like to thank Stephan Horde for sending out this link on Facebook and tagging me to it. I would also like to thank him for the future Like I will get on this blog post.