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Covers 4 popular solutions, namely validating, joining, shrinking and compressing your markup source code for Javascript and CSS. Excellent HOWTO!

This article discusses various ways of analysing a website for potential speed bumps and provides tips on how to optimize a site for performance.

This tutorial shows how to install the Aptana IDE on an Ubuntu Edgy Eft system. The Aptana IDE is a free, open-source, cross-platform, JavaScript-focused development environment for building Ajax applications. It features code assist on JavaScript, HTML, and CSS languages, FTP/SFTP support and a JavaScript debugger to troubleshoot your code.

One of the best introduction on CSS I've seen in a long time

A way to easily bring life and interactivity to websites without having to use Flash. Completely accessible, with easy plug-and-play implementation. Awesome framework using Javascript and CSS

A good, but short list of CSS tips and tricks.

A very good alternative to browsercam if all you want is to see how your site looks like in various browsers. Very nice interface and easy to use