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.
An archive of book cover design and designers for the purpose of appreciation and categorization.
Solarized is a sixteen color palette (eight monotones, eight accent colors) designed for use with terminal and gui applications
Listutorial takes you through the basics of building background image lists, rollover lists, nested lists and horizontal lists.
A jQuery plugin for kerning and additional typographic control
IcoMoon provides a package of vector icons, along with a free HTML5 app for making custom icon fonts. Browse among thousands of pixel perfect icons or import your own vectors.