Javascript

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Get the fancy new XRegExp 2.0 Release Candidate and upgraded/new addons at GitHub ! See the long list of changes and improvements in the Roadmap . XRegExp is an open source ( MIT License ) JavaScript library that provides augmented, extensible, cross-browser regular expressions.

XRegExp: JavaScript regex library

http://xregexp.com/

OpenJsCad

Playground http://joostn.github.com/OpenJsCad/
http://createjs.org/

Create — A new kind of web editing interface

Create, from the Midgard Project is a comprehensive web editing interface for Content Management Systems. It is designed to provide a modern, fully browser-based HTML5 environment for managing content.
http://josscrowcroft.github.com/money.js/ Aside: exchange rate data should be free. This tied in closely with the “They want how much per month for their exchange-rates API?!”

money.js / fx() - javascript currency conversion library

Organize Your Code with RequireJS | Think Vitamin

In this example, I capitalized the Person module, since in this hypothetical module it is returning a JavaScript class, not a normal object with properties, so I used a capitalized name as a convention. http://thinkvitamin.com/code/javascript/organize-your-code-with-requirejs/
Say, you know what would be a great idea? Since you're already down here, it would be great if you could get a can of pesticide and take care of the cockroach problem we've been having. http://www.fairwaytech.com/flexbox.aspx

FlexBox

FullCalendar - Download

Includes a basic stylesheet , the Google Calendar extension , and the necessary jQuery and jQuery UI files. http://arshaw.com/fullcalendar/download/

Backbone.js

Backbone.js gives structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing API over a RESTful JSON interface. http://documentcloud.github.com/backbone/
http://jqfundamentals.com/book/

jQuery Fundamentals

With contributions by James Padolsey, Paul Irish, and others.
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