Profound Grid | A grid system for fixed and fluid layouts
Another take on grids
Typeplate » A typographic starter kit encouraging great type on the Web
A neat typographic starter kit
Bourbon Sass Mixins Library
A simple and lightweight mixin library for Sass. Bourbon is a library of sass mixins that are designed to be simple and easy to use. No configuration required.
Golden Grid System
Four features Columns, gutters, a baseline and a script.
CodeIgniter - Open source PHP web application framework
Now this looks fab
jQTouch
AjQuery plugin for mobile web development on the iPhone, iPod Touch, and other forward-thinking devices.