CiviCRM
CiviCRM is an open source and freely downloadable constituent relationship management solution. CiviCRM is web-based, open source, internationalized, and designed specifically to meet the needs of advocacy, non-profit and non-governmental groups. Integration with both Drupal and Joomla! content management systems gives you the tools to connect, communicate and activate your supporters and constituents. The OSL is hosting much of the infrastructure for CiviCRM including the main website, the demo server, the documentation server, and discussion forums.
