| Dynamic Drive | Free Javascripts and DHTML code. |
| Free JavaScripts | Free Javascripts: user-interface elements, visual and sound effects, forms and validation, etc. etc. |
| Javascript Kit: Free JavaScripts | Free java scripts organized by category. |
| JQuery | A free JavaScript library that simplifies how you traverse HTML documents, handle events, perform animations, and add Ajax interactions to your web pages. |
| YUI Library | The Yahoo! User Interface (YUI) Library is a set of utilities and controls, written in JavaScript, for building richly interactive web applications. |
