Intern : Intern is a complete test system for JavaScript designed to help you write and run consistent, high-quality test cases for your JavaScript libraries a...
JavaScript Templates : For web application developers, the '''JavaScript Templates''' engine from TrimPath is a lightweight APL / GPL open-source component that lets you hav...
Ember.js : A JavaScript framework for creating ambitious web applications
jQuery Masonry : A dynamic layout plugin for jQuery
The flip-side of CSS floats