PaulSpoerry.com

Found this over at mashable, I’ve used several of these sites for many years…. it’s a great list.

JavaScript is one of the most often used languages on the web, and it seems to be gaining in popularity each day. We’ve gathered 25+ tools and tutorials which will be useful to any JavaScript programmer - novice or pro.

ActiveWidgets.com - A component library that gives you AJAX-style fuctions with common visual elements.

Agile Partners Photo Resizing Tutorial - A tutorial on how to use the Prototype and script.aculo.us libraries to build an interactive photo resizer.

ByteFX - A low-level framework for simple JavaScript effects.

DevGuru - Defines all the terms of JavaScript and gives you code samples of what they do.

DojoToolkit.org - An open source DHTML toolkit built in JavaScript and based on several other tools.

Drag & Drop Sortable Lists - Tutorial for creating sortable lists with drag & drop functions.

DynamicDrive.com - A large collection of DHTML and JavaScripts for your use.

Firebug - An extension for the Firefox browser that allows you to do web development from directly inside the browser, including JavaScript.

JavaScript-reference.info - A reference site that teaches you both how to read and write JavaScript.

JavaScriptKit.com - A list of JavaScript objects, properties, and methods that include examples.

jQuery.com - A JavaScript library with a small footprint and concise coding for as few lines as possible.

Learn JavaScript in 10 Minutes - As the name implies, learn the basics of JavaScript in 10 minutes from this very straightforward tutorial.

Lightbox2 - A JavaScript for overlaying photos on the current page with a semi-transparent background.

LightWindow - Another overlay window system that allows you to do it with multiple media file types and even other websites.

MochiKit.com - A set of JavaScript libraries that takes ideas from Python and Objective-C, and uses them in JavaScript.

Moo.fx - JavaScript effects library that works with the Prototype.js and Mootools frameworks.

Mootools.net - An object-oriented JavaScript framework for intermediate to advance users.

Prototype Windows Class - Allows you to add an overlay window to your HTML.

Prototypejs.org - A JavaScript framework that is built with Web 2.0 in mind, includes Ajax integration.

QuirksMode.org - The personal site of a professional web developer who offers over a 120 tricks for defeating browser incompatibility issues of CS and JavaScript.

Reflection.js - A small JavaScript to add reflections to your image.

script.aculo.us - A JavaScript library that integrates easily with numerous frameworks.

ThickBox - Works with jQuery to provide an AJAX hybrid for image overlays.

TinyMCE JavaScript Content Editor - A content editor written completely in JavaScript and converts HTML text areas in to editor instances.

W3Schools JavaScript Tutorials - 100 Examples to learn JavaScript by.

WebTeacher.com - Takes the point of view of teaching JavaScript to a programming novice.

Walter Zorn Drag & Drop - A cross-browser JavaScript DHTML library that allows you to turn any image in to a layer that can be dragged and dropped where the user chooses.