Tutorials
PHP coding guidelines - The guidelines that I follow when writing my PHP scripts; can be helpful to have something like this if you're working on a joint project.
Using .htaccess files - Learn how to configure many aspects of the Apache web server through the .htaccess configuration files.
Asking smart questions - This guide will teach you how to avoid the types of questions that will end up with you being ridiculed and get the answers you seek, without treading on anyone's toes in the process.
Web developer FAQ - Growing list of frequently asked questions (and answers) to help budding webmasters.
Newbie FAQ - Information for those people new to the world of computers and, more specifically, hacking.