AltoCMS 1.1.24

Alto CMS is a flexible Web Content Management System with various community features and extensions plugins. It includes the obligatory admin panel, an content editor, blogs, multimedia attachments, an invite system, comments for tracking discussions, and a user mailbox system. It's also PHP based, can use Mysql/Mariadb or Postgres using PDO with bound parameters.

FlatNuke 3.1.5

FlatNuke is a Web-CMS and portal script, that doesn't require a relational / SQL database. It uses plain file storage exclusively. It has the common blog, news, forum, download, gallery, and calendaring functionality.

Liferay Portal 7.0.0 M1

Liferay Portal is a portal software for collaborative enterprise intranets and extranet web sites with application integration. It features a built-in web content management system with theming, custom pages, widgets and common navigation structures. Liferay is implemented as Java servlet but supports portlets in PHP or Ruby. It's available as open source community edition and commercial package.

ILIAS E-Learning 4.4.4

ILIAS is a web based learning management system / virtual learning environment. It features a course and test system, SCORM 1.2 support, LOM, modules for email, forum, surveys and polls, chatting, groups, podcasts, calendaring, file sharing, authoring, a content management system, wikis, blogs, personal desktops, and Lucene based searching. It allows LDAP management and role based access controls. It's plugin based, themeable, and internationalized for 25 languages.