Get schooled in CSS at Chris Coyier’s CSS-Tricks.com: get help, give help, get inspired, and then get to work. Make something.
CSS-Tricks.com isn’t just a CSS help forum. It’s not just a gallery of CSS inspiration, it’s not just a set of tutorials to help you build your CSS chops. It’s all these things and more. Chris Coyier’s compendium of CSS goodness features a prolific blog, over 100 videos you can watch and learn from, and some hot CSS snippets you can download and apply to your project in the time it takes you to copy and paste.