SoundManager 2 : Using HTML5 and Flash, SoundManager 2 provides reliable cross-platform audio under a single JavaScript API.
jquip : Smaller, Lighter, Faster, more modular jQuery - include only the parts you want! Don't use it, Don't include it.
Raphaël : Raphaël is a small JavaScript library that should simplify your work with vector graphics on the web. If you want to create your own specific chart or...
Band.js : An interface for the Web Audio API that supports rhythms, multiple instruments, repeating sections, and complex time signatures.
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 ...
Namespace.js is a small javascript script which provide namespacing utilities. It is framework independent. It also allows you to remotely include files.