Jschool uses the following open source libraries/components/reference sources and is eternally grateful...
jQuery
RequireJS
highlight.js
SimpleStore.js
FontAwesome
Meyerweb CSS Reset
Railscasts theme for highlight.js
Google Web Fonts/Łukasz Dziedzic
W3Schools CSS/HTML5 Reference
StackOverflow's CSS & JavaScript Answers
pleeease.io's CSS Browser Prefix Generator
Mozilla Developer Network's JavaScript Reference
Inspiration for design, layout and functionality from Codecademy