Persistent Grid is a grid at heart, but also boasts a great collection of re-usable modules.

Picasso - Sass/Compass Framework

CSS grid that smells of pine. In SCSS, for Compass.

A supra-modular CSS theming system based on COMPASS

turn a list into a 3D object of any shape and size... as long as that shape is a cube

Poly is a Ruby CMS with smart asset compiling and much, much more.

A robust, extensible and opinionated OOCSS front-end framework built with SASS and Compass framework

Pretty Doc is quick and convenient markdown to html converter with beautiful templates, aiming to provide a simple tool to generate beautiful docs for common use.

Book boilerplate to generate books as EPUB, MOBI, and PDF from simple Markdown text files. Or from HTML. Or from LaTeX. Or mixed.

Test

add songs to queue, let cmus eat it

Twitter's Bootstrap, converted to Sass and ready to drop into Rails or Compass

Content Management Database Development Environment

Test your JavaScript without any framework dependencies, in any environment, and with a nice descriptive syntax.

Random number generators plugin for compass. Allows you to use a number of random number generators in your compass files

An easy and quick Sass + Compass + Susy + OOCSS + BEM prototyping framework.

Rest and HTML interface

Boilerplate template implementation for compass

a compass extenstion of Redframework

Ruby gem with Thor script to manage MySQL and PostgreSQL replication