“There aren’t any Web Standards, only Recommendations.” (“There is no spoon” :P)
Creating bulletproof graphic link buttons with CSS
Firefox Extension for PHP Development
Now this is nifty: “Just install the FirePHP Firefox extension, PHP PEAR package and add a few lines of code to your PHP application to get started. You will see a “FirePHP” tab in your Firebug extension to bring your PHP backend logic to your fingertips!” Be sure to check the reference on extending Firebug …