From Drupal and Moodle, right through to a Git versioning system and Perl modules on CPAN, we contribute back to over 175 community open source projects. This list is in order of the number of projects contributed to.
A script to convert a koha installation (created via koha-create) to run using code in a git clone
Libravatar is a service which delivers avatars to other websites. It implements the same API as Gravatar but adds DNS-based federation allowing domain name owners to host profile pictures for their own organisations. It also allows users to associate photos to their OpenID URLs, not just their email addresses.
MaharaDroid enables Android phones to share or upload content to a Mahara instance. This app was superseded by Mahara Mobile for Android and iOS devices in October 2016.
Mahara user manual (http://manual.mahara.org)
The Mahara user manual is the user documentation for the ePortfolio and collaboration system Mahara (http://mahara.org). It is generated from rST files in Sphinx and translations are provided as well.
Medusa is a webservice API for WRMS (Work Request Management System)
Moodle (contrib) (http://cvs.moodle.org/contrib/)
This code is third-party or popular plugins, patches and tools for Moodle that are separate from the main codebase.
Mozilla Core (http://sourceforge.net/projects/testsasplanet)
The core libraries shared by Mozilla applications.
Mozilla Firefox (https://www.mozilla.org/en-US/firefox/)
The award-winning, free Web browser is better than ever. Browse the Web with confidence - Firefox protects you from viruses, spyware and pop-ups. Enjoy improvements to performance, ease of use and privacy. It's easy to import your favorites and settings and get started. Download Firefox now and get the most out of the Web. Ohloh Note: There's more to Firefox! See the Mozilla Core and Mozilla Chrome projects for complete coverage.
MySQL, the most popular Open Source SQL database management system, is developed, distributed, and supported by Oracle Corporation.
OpenStack Horizon (http://launchpad.net/horizon)
Horizon is the official OpenStack Dashboard. It is based on a Django module called django-openstack. Both the django-openstack module as well as a reference implementation of a fully functional Django site called openstack-dashboard are part of this project. As of the Diablo release, Horizon is now an OpenStack Core project and is a fully supported OpenStack offering. The codebase has moved to GitHub and is now available at: https://github.com/openstack/horizon