This web site uses Tiki CMS/Groupware, also known as TikiWiki, to store and display content. Tiki is a powerful, Open Source, web-based Groupware and Content Management System (CMS). It can be used to create all sorts of Web applications, sites, portals, intranets and extranets. Tiki is developed by a large number of contributors that form the Tiki community.
See https://tiki.org/Facts for more information.