• Language definition guide
• Mode reference
• Library API
• Style definition guide
• Contributor checklist

• Code: https://github.com/isagalaev/highlight.js
• Discussion: http://groups.google.com/group/highlightjs
• Bug tracking: https://github.com/isagalaev/highlight.js/issues
• User support: http://softwaremaniacs.org/forum/highlightjs/

Most currently wanted languages to add to highlight.js:

• Matlab
• Clojure (generic Lisp highlighting doesn't work for Clojure because of its unique syntax elements like native maps, vectors and keywords)
• YAML
• SASS
• HAML
• CoffeeScript (work in progress: https://github.com/dnagir/highlight.js/tree/coffee-script)