See for extensions

http://extensions.joomla.org/

Plugins

• Installation of Tabber to insert tabs
• Installation of Article anywhere to insert articles
• Installatiwe're Anywhere Modules - Joomla! Directory Extensions
• Installation of Syntaxhighlighter for syntactic coloring

Modules

• Installation of the extension akeeba-backup for the backup of the Joomla site
• Installation of the extension site-map to manage the site plans and declare them to Google and Bing: see http://www.blog.manit4c.com/2009/07/15/un-plan-de-site-sur-joomla/.
• Installation of the extension Mini-calendar to display the calendar of the homepage
• Installation of the extension MediaWiki Auto-Login to interface with MediaWiki
• Installation of Flexi Custom Code to add code: e.g. weather: see Flexi Custom Code

Components

• Installation of the component JQuickContact : form with a captcha.