More random sites...

Here's an challenge if I ever saw one: The 5k: an award for excellence in web design and production where "all HTML, script, image, style, and any other associated files must collectively total less than 5 kilobytes..."

the5k.org

And then from there I found a link to Eric Costello's site:

Glish.com

which has an excellent section on CSS Layout Techniques. Check out Eric's weblog while you're there, too.