TraceKit : Not all browsers support stack traces on error objects, but TraceKit squeezes out as much useful information as possible and normalizes it.
sIFR : sIFR is meant to replace short passages of plain browser text with text rendered in your typeface of choice, regardless of whether or not your users h...
RequireJS : RequireJS is a JavaScript file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Rhino ...
Autotrack : Automatic and enhanced Google Analytics tracking for common user interactions on the web.
Band.js : An interface for the Web Audio API that supports rhythms, multiple instruments, repeating sections, and complex time signatures.