SocialEngine - Socialengine PHP: Elevating Your Online Community Experience.
eXo Platform - Digital workplace solution
mooSocial - mooSocial is the best social network script to create a niche community or social site.
Basecamp - A simple and elegant project management system.
JomSocial - Open Source Social Networking Software. Award winning open source community software by JomSocial. This social networking software is widely used by many Joomla users.
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