Hide your header on scroll – Headroom.js

Headroom.js is a lightweight, high-performance JS widget (with no dependencies!) that allows you to react to the user’s scroll. The header on this site is a living example, it slides out of view when scrolling down and slides back in when scrolling up. Source: Hide your header on scroll – Headroom.js

Flip-Quote by Mark Serbol

jQuery Flip-Quote creates a pull-quote from a text quote found in the document that flips once it’s scrolled into view. It also has a click feature that scrolls into and highlights the quote origin on the document. Source: Flip-Quote by Mark Serbol

ImageMapster

ImageMapster is a jQuery plugin that lets you activate HTML image maps without using Flash. It works just about everywhere that Javascript does, including modern browsers, Internet Explorer 6, and mobile devices like iPads, iPhones and Androids.   Source: ImageMapster