Email Standards Project : The Email Standards Project is about working with email client developers and the design community to improve web standards support and accessibility ...
I Love Typography : I Love Typography, devoted to fonts, typefaces and all things typographical.
CSSdoc : This is a draft to bring automatic documentation to CSS files, like its known for JavaScript and PHP files through JavaDoc/DocTags.
idiomatic-css : Principles of writing consistent, idiomatic CSS
