E+lements is a minimal DOM Library for the prime framework.
An absurdly fast CSS selector engine.
A client-side solution to conditional loading.
Sieve is a jQuery plugin allows you to quickly add an interactive search filter to any block of content.
Calculates if the mouse position is near to a given element.
Master your scroll events.
Waypoints is a small jQuery plugin that makes it easy to execute a function whenever you scroll to an element.
jQuery Ui widget that will transparently save the state of checkboxes, inputs, selects, etc in localStorage, restoring these on the user's next visit to the page.
jQuery plugin for hiring doubles