SobiPro is a sophisticated, very extensible, highly configurable and powerful multi-directory component with content construction support for the award winning content management system Joomla!
Take a look to the demo site to see how SobiPro looks like, but keep in mind that also the demo shows only a piece of the capabilities of SobiPro.
SobiPro is released under GNU GPL V3 open source license and can be downloaded for free.
If you are looking for additional help, documentation or applications for SobiPro, feel free to join the SobiPro Club. The SobiPro Club membership grants you access to additional resources like to the documentation, to the special SobiPro Club forum and to additional SobiPro applications which allows you to extend the functionality of the SobiPro component. Furthermore, as a Club member you will participate in the further SobiPro development.