Joomla Sigsiu.NET Sigsiu.NET currently produces the most popular directory components on the market for the Joomla! Content Management System - Sobi2 and SobiPro. Spanning a time period of just over 5 years, the Sigsiu Online Business Index 2, or Sobi2 for short, has become the leader with over 500,000 downloads to date. SobiPro is the next generation of directory extension with content construction support for Joomla!. SobiPro is a very extensible and highly configurable multi-directory component which allows you to easily extend your Joomla! powered website with a products directory, download directory, download and document management, real estate functionality and much, much more all from a single installation. Get a Membership for the SobiPro Club and benefit from additional applications, documentation and access to the member only SobiPro support forum.