User interface frameworks for web browser applications and sites

( Twitter Bootstrap - "Sleek, intuitive, and powerful mobile first front-end framework for faster and easier web development."

Theming Bootstrap sites:

  • ( Bootswatch - An open source repository of free themes for Twitter Bootstrap.
  • ( Wrap Bootstrap - "a marketplace for premium Bootstrap themes and templates."
  • ( - "Create unique web design with Twitter Bootstrap. Kw: themes, templates, styles. generator. customize."
  • ( Customizing Bootstrap - An overview of doing customizations of Twitter's Bootstrap, relavent to v2.x