15 Effective Tips and Tricks from the Masters of CSS | Noupe
http://www.noupe.com/css/15-effective-tips-and-tricks-from-the-masters-of-css.html

There are thousands of sites out there offering tips and tricks for using CSS. But how do you know where that information is coming from? Who says the people writing these “tips” know what they’re talking about? For all you know, it could be someone who has not clue what CSS even stands for, let alone how to use it effectively. But that’s not the case with the experts below. They’re all well-known for their mastery of CSS and all that goes along with it. Read on for their tips and tricks with regards to everything from avoiding hacks to understanding the box model.

a good article on combining different fonts (ie. what serif works with a sans-serif).