JSDB.io : JSDB is a collection of the best javascript libraries
css3-mediaqueries-js : make CSS3 Media Queries work in all browsers (JavaScript library)
yepnope.js : A Conditional Loader For Your Polyfills!
xui.js : A super micro tiny DOM library for authoring HTML5 mobile web applications.
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...
Fantastic Micro-Frameworks and Micro-Libraries for Fun and Profit!