jquip : Smaller, Lighter, Faster, more modular jQuery - include only the parts you want! Don't use it, Don't include it.
Morris.js : Morris.js is a lightweight library that uses jQuery and Raphaël to make drawing time-series graphs easy.
css3-mediaqueries-js : make CSS3 Media Queries work in all browsers (JavaScript library)
Select2 : Select2 is a jQuery based replacement for select boxes. It supports searching, remote data sets, and infinite scrolling of results.
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...
Sammy is a tiny javascript framework built on top of jQuery, It's RESTful Evented Javascript.