Mighty Networks - Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.
Sass - Syntatically Awesome Style Sheets
Bigtent - BigTent is a web-based organization and communication portal for groups.
PostCSS - Increase code readability. Add vendor prefixes to CSS rules using values from Can I Use. Autoprefixer will use the data based on current browser popularity and property support to apply prefixes for you.
Nabble - Nabble is a forum software that are embeddable and fully customizable with scripting language.
Stylus - EXPRESSIVE, DYNAMIC, ROBUST CSS