Came across this CSS Cheat Sheet (http://www.ilovejackdaniels.com/css/css-cheat-sheet/) tonight while looking up some information to edit my stylesheets. I know my friend Scott will be VERY interested in this, unless he turns around at work and says “Time Machine!”, our code-word for situations when one of us already knew about the information in question.
This site also has a few other Cheat Sheets for web developers, such as a MySQL Cheat Sheet, a PHP Cheat Sheet, an RGB Hex Color Chart, and a personal favorite of mine, the mod_rewrite Cheat Sheet.