Joomla có sẵn chức năng quản lý thành viên, nhưng muốn ngon lành hơn bạn co thể sử dụng Community Builder http://www.mambojoe.com/content/view/8/32/
- Diễn đàn:
SimpleBoard http://www.tsmf.net/
SMF http://simplemachines.org/ http://www.joomlahacks.com/
PHPBB http://www.phpbb.com/ http://developer.joomla.org/sf/projects/phpbb
VBulletin http://www.vbulletin.com/ http://www.joomlaya.com/index.php?option=com_content&task=view&id=101&Itemid=52
- Tin thư (NewsLetter):
YANC http://developer.joomla.org/sf/projects/yanc
ANJEL http://developer.joomla.org/sf/go/proj1331
- Thư viện hình ảnh:
Rsgallery2 http://developer.joomla.org/sf/projects/rsgallery2
Ponygallery http://developer.joomla.org/sf/sfmain/do/viewProject/projects.ponygallery
Zoom Media Gallery http://www.zoomfactory.org/
DatsoGallery http://datso.net/
Coppermine http://sourceforge.net/projects/coppermine/
Gallery2 http://gallery.menalto.com/
- Video, Audio
MosMedia http://www.ag-solutions.net/
JooMedia http://developer.joomla.org/sf/projects/joomedia
- Events & Calendar
Events Calendar http://mamboforge.net/projects/events/
Event List http://developer.joomla.org/sf/sfmain/do/viewProject/projects.event_list http://www.schlu.net/
ExtCalendar http://sourceforge.net/projects/extcal http://mamboforge.net/projects/extcalendar/
- Shopping
Virtuemart http://virtuemart.net/
Oscommerce http://www.byrgius.com/software/mosCommerce/ http://www.oscommerce.com/
- Quản lý file
DOCMAN http://developer.joomla.org/sf/sfmain/do/viewProject/projects.docman
Remository http://www.remository.com/
- Sitemap
JooMap http://developer.joomla.org/sf/projects/joomap
- SEF
OpenSEF http://developer.joomla.org/sf/projects/opensef