Aloha Editor : Aloha Editor is an open source WYSIWYG editor that can be used in webpages. Aloha Editor aims to be easy to use and fast in editing, and allows advanc...
swfobject : SWFObject 2 offers two optimized Flash Player embed methods; a markup based approach and a method that relies on JavaScript & offers a JavaScript API ...
Styletron : Styletron is a universal CSS-in-JS engine built from the ground up for high-performance.
yepnope.js : A Conditional Loader For Your Polyfills!
Modest Maps is a small, extensible, and free library for designers and developers who want to use interactive maps in their own projects.