Jed Foster

Readmore.js. A lightweight jQuery plugin for collapsing and expanding long blocks of text with "Read more" and "Close" links.

SassMeister. The Sass playground

Roughdraft. Gist-powered writing.

AudioJS. Fork of VideoJS for audio, with support for themes.

html5-WP-audio-player. A version of the awesome WordPress Audio Player for browsers that support HTML5's <audio> tag, with fallback to the original Flash player for browsers that don't.

accordion. An enhanced version of Kevin P. Millers Accordion v2 for Prototype and Scriptaculous

scaljs. SCal - Javascript Calendar Based on Prototype. Forked from http://code.google.com/p/scaljs/

glider. Javascript Glider control based on script.aculo.us

rollover. Unobtrusive Image Rollover with Prototype JS Library

cooltips. CoolTips is a replacement for conventional web-browser tooltips. Cooltips is fully unobtrusive Class based on Prototype &amp; Script.aculo.us, which is functional without any images (pure CSS).

html5-boilerplate. starting html/css template. so much goodness baked in by default

blueprint-css. A CSS framework that aims to cut down on your CSS development time

wysihtml5. Open source rich text editor based on HTML5 and the progressive-enhancement approach. Uses a sophisticated security concept and aims to generate fully valid HTML5 markup by preventing unmaintainable tag soups and inline styles.

unnecessary-snow. JavaScript

validated-fields. Set of Rails helpers for unobtrusive frontend validations using HTML5 attributes, Rails 3 validators and JavaScript.