In this tutorial, we’re not only going to get you up to speed on how to create a CSS image map, but, we’re also going to take it a couple steps further and add hover states to our image map using a CSS background image sprite, as well as a “tooltip” like popup.

23 excellent, print-ready cheat sheets for HTML/HTML, CSS, and JavaScript (including MooTools and jQuery)

Baseline is a framework build around the idea of a “real” baseline grid.

A look at the idea behind CSS Frameworks, their advantages and disadvantages, most popular CSS frameworks and dozens of default-stylesheets you can use designing a new web-site from scratch.

5 most popular CSS Frameworks; showcasing handpicked tutorials for using each of them among other useful tools and resources you will definitely find useful and time-saving.

markup and style validator as well as a blog on coding

yet another css framework

Feast your eyes over this collection of super useful CSS resources

Compass is a CSS Meta-Framework that provides ports of the best of breed CSS frameworks to Sass and ready to use in your ruby-based web application or stand-alone via a simple command-line interface.