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 ...
Protovis : Protovis composes custom views of data with simple marks such as bars and dots. Unlike low-level graphics libraries that quickly become tedious for vi...
Impel : Impel takes the pain out of working with HTML5 asynchronous databases.
Statement callbacks? Transaction callbacks? One-to-many and many-to-many relati...
rsvp.js : A lightweight library that provides tools for organizing asynchronous code
Mousetrap : A simple library for handling keyboard shortcuts in Javascript.
A library to generate PDFs in client-side JavaScript.
