WordPress is a content management system for websites and blogs free for educational content, commercial, scientific, and... also the ability to create social sites with a plugin, powerful as buddypress . Create free plugin bbpress.... as a consequence, programming language, php, written by Mai SS s supported.Also, the version for postgersql are available this system is completely free and open source.
WordPress in way more successful project b2, which in 2003 was formed. The name of the WordPress Kristiansand Slack, etc., Matt Mullenweg (the main developer of WordPress), the institution, and from that day WordPress speed and progress substantially become the most famous and widely used tool for making blog and website on file.