Pose is a lightweight php powered css engine that allows you to use variables, functions, includes and more directly in your css files. It can merge multiple stylesheets into one css file and even minify and cache it for you. Pose aims to make your stylesheets faster, smaller, more dynamic and easier to code.

An easy, flexible, empowering Content Management System for rapid development that transforms your CodeIgniter projects into client manageable brilliance.

Scaffold is a CSS pre-processor built in PHP that allows developers to easily create custom extensions to CSS and reduce the amount of time they spend writing code.

lessphp is a compiler that generates css from a small superset language that adds many additional features seen in other languages. It is based off an original Ruby implementation called LESS. For the most part, lessphp is syntactically compatible with LESS, with the exception of a few things

Picking up where Frog CMS left off.

TypePublish is a PHP/MySQL-based website content management system and application framework. It is ideal for small-to-medium businesses who want to set up and manage their own websites. It's also perfect for web developers who want to build fast and elegant websites and online applications on behalf of their clients.

MAMP is a very easy to install compilation of Apache, PHP and MySQL for OSX

Frog CMS share the goal to simplify content management, and offer an elegant user interface, flexible templating per page, simple user management and permissions and all what you need for your files management.

SimplePie is a very fast and easy-to-use class, written in PHP, that puts the ‘simple’ back into ‘really simple syndication’.

Zend is a framework for PHP5 currently in beta.

Nice write up on parsing XML with the new SimpleXML extension in PHP5. Syntax looks easy to use.

htaccess experience example and tutorial

A very nice PHP / MySQL / CSS forum