The Web makes it easy for anyone to become a publisher. That's the good news. The bad news is, when everyone's a publisher, it's harder to sort through all the chaff to find the golden wheat of clear, concise, and accurate information. There's plenty of good CSS information on the Web—and a lot that's not good. Here are a few of the best destinations for CSS information:
CSS-Tricks.com (http://css-tricks.com). This one-man blog is full of great CSS tips. You'll find frequently updated tips and tricks as well as comprehensive video tutorials.
Sitepoint (www.sitepoint.com/subcat/css). Sitepoint's CSS tutorials are very good (even though they're not updated frequently).
Smashing Magazine (www.smashingmagazine.com/category/css). Smashing Magazine gathers some of the best resources on the Web, and in the CSS category you'll find a nearly endless number of links highlighting some of the most creative thinking on CSS and web design.