Help:Advanced editing and technical information

Special pages

 * SourceWatch's special pages: Special:Specialpages
 * Information from MediaWiki.org on special pages: Manual:Special pages
 * Wikimedia's meta-wiki page on Help:Special page

Help page formatting and navigation

 * Wikimedia's meta-wiki page on Category:Handbook templates

CSS

 * Wikimedia's meta-wiki page on Help:User style (contains the CSS used in Wikipedia)

Customizing MediaWiki

 * MediaWiki forums archive on customizing MediaWiki