xui.js : A super micro tiny DOM library for authoring HTML5 mobile web applications.
Autotrack : Automatic and enhanced Google Analytics tracking for common user interactions on the web.
SPF : A lightweight JS framework for fast navigation and page updates from YouTube
jsmad : jsmad is a pure javascript MP3 decoder, based on libmad, with an ID3 decoder written from scratch.
polyfill : polyfill makes web development less frustrating by selectively polyfilling just what the browser needs. Use it on your own site, or as a service.
Rainbow is a code syntax highlighting library written in Javascript.
It was designed to be lightweight (1.4kb), easy to use, and extendable.
It is completely themable via CSS.