jquery.hotkeys plugin lets you easily add and remove handlers for keyboard events anywhere in your code supporting almost any key combination. It takes one line of code to bind/unbind a hot key combination
Stellar.js - Parallax scrolling made easy
jQuery Plugin for Sticky Objects
A better way for new feature introduction and step-by-step users guide for your website and project.
The HTML Presentation Framework
A simple, in-browser, markdown-driven slideshow tool.
Dropzone is an easy to use drag'n'drop library. It supports image previews and shows nice progress bars.
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.