Open Atrium is an open source intranet package powered by Drupal that is easy to install and use, and since it is open source you can customize it to meet your exact needs. Open Atrium’s built in communication and collaboration features include a blog, a wiki, a calendar, a to do list, a shoutbox, and a dashboard to manage it all.
Open Atrium is completely customizable. If you want a feature that’s not on that list, you can add it yourself. Open Atriums allows new features to be added easily as a plugin to the basic package, enabling entire community to share and extend it.
Atrium has been tested with the following software successfully. Your mileage may vary on other configurations:
- PHP 5.2+
- PHP GD extension
- 64MB memory limit
- MySQL 5
- Apache with mod_rewrite
Developed by Development Seed; Most of Open Atrium’s source code falls under GPL v. 2 b, since it’s built on Drupal framework. All the code that’s not under GPL has a BSD license. You can find further information, demo & download on Open Atrium Website.