loglevel : Minimal lightweight logging for JavaScript, adding reliable log level methods to wrap any available console.log methods
impress.js : It's a presentation framework based on the power of CSS3 transforms and transitions in modern browsers and inspired by the idea behind prezi.com
cssQuery() : cssQuery() is a powerful cross-browser JavaScript function that enables querying of a DOM document using CSS selectors. All CSS1 and CSS2 selectors ar...
jQuery Masonry : A dynamic layout plugin for jQuery
The flip-side of CSS floats
JSDB.io : JSDB is a collection of the best javascript libraries
Modest Maps is a small, extensible, and free library for designers and developers who want to use interactive maps in their own projects.