Octopress is a framework designed by Brandon Mathis for Jekyll, the blog aware static site generator powering Github Pages.
Kirby is another PHP file-based cms. Easy to setup, easy to use, flexible as hell.
Origami is a free toolkit for Quartz Composer—created by the Facebook Design team—that makes interactive design prototyping easy and doesn’t require programming.
This tutorial shows how to setup a Pogoplug running Arch Linux ARM.
Web Font Specimen is a handy, free resource web designers and type designers can use to see how typefaces will look on the web.
The Colour Contrast Check Tool allows to specify a foreground and a background colour and determine if they provide enough of a contrast "when viewed by someone having color deficits or when viewed on a black and white screen".
A dash of predefined style for your Bourbon stylesheets.
ish. is yet another viewport resizing tool. It’s called “ish.” because it focuses on general ranges (small-ish. medium-ish. large-ish.), rather than popular device widths.
Generating color palettes with Sass variables and a bit of magic.
Yeoman is an open source set of frameworks and tools to accelerate building compelling webapps. It includes yo, grunt and bower.