script.aculo.us : script.aculo.us provides you with
easy-to-use, cross-browser user
interface JavaScript libraries to make
your web sites and web applications fly.
tarteaucitron.js : The european cookie law regulates the management of cookies and you should ask your visitors their consent before exposing them to third party service...
Zepto.js : Zepto is a minimalist JavaScript library for modern browsers with a largely jQuery-compatible API. If you use jQuery, you already know how to use Zept...
Sammy.js : Sammy is a tiny javascript framework built on top of jQuery, It's RESTful Evented Javascript.
Styletron : Styletron is a universal CSS-in-JS engine built from the ground up for high-performance.
Modest Maps is a small, extensible, and free library for designers and developers who want to use interactive maps in their own projects.