Penguin is a tool for creating presentations.

Continous integration solution compatible with travis.ci

Out-of-the-box sinatra server for web site sketching using haml + sass + coffee-script

Component based static site builder

Piecss produces little to none output. The only default output that Piecss produces is an optimized version of Normalize.

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.

Potatochop - because F$%k Photoshop, that's why.

A static site generator that supports code, photos and files.

A responsive fixed width grid framework built on top of Sass based on the Frameless Grid by Joni Korpi

Mark Otto's Preboot 2, converted into sass

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

A more powerful file input.

Gem to aid in the creation of single file HTML presentations.

Simple, standard and elegant CSS structures based on Bootstrap3

A mail merge for developers.

Proton lets you create static websites from a bunch of files written in HAML, Textile, Sass, or any other templating language.

@pshizzle's personal style flavor: pstizzle!

Simple sinatra/activerecord based app for tracking time when people have been in the office

This is Yahoo's Pure CSS framework, but with sass placeholders instead of basic css. It's great and you can use it with Rails 3.1+ in the asset pipeline.