Publisher A user level on a Joomla site with access only to the front end. Publishers have permission to write, edit, and publish site content.
Register users A user level on a Joomla site that is the same a Public except for the Allow permission for the Site Login action. This means members of this group have access only to the front-end access to the site. Should you wish it, a registered user is able to see additional content to that seen by casual visitors to your site.
Router In Joomla, a program that associates a path (URL) with internal Joomla queries. Normally a router contains two methods, build() and parse(). The build() method takes an array of commands and returns a JURI object. The parse() method reverses this and turns a JURI object into an array of commands.
JoomlaDay Annually events for Joomla community organized around the world. Joomla.org has a brief list of major Joomla Day since its early days at http://docs.joomla.org/Joomla!_Days/History
