At the core of this growth is the Open Source Initiative which provides the “ground rules” for the global collaboration necessary to pull everything together.
By our frequency of use:
WordPress | Joomla | b2Evolution | phpMyFAQ – MediaWiki WikkaWiki – Drupal – DokuWiki
Additional Open Source software we use either R&D or production environments on a daily basis:
WordPress is one of the most widely used Open Source software projects in the world. We currently have nearly 30 WordPress installations in R&D or production environments with a number of new installations planned over the next months. WordPress is available as dowloadable software for your own hosted site (at WordPress.Org) or as a hosted solution at WordPress.com. Our HoarseMan blog is hosted by WordPress.com
Current* sites using WordPress technology
*Not including test, demo, and internal platforms