From David Geilhufe. CivicCRM is an open source constituency relationship management application running on Drupal (for now):
"Progress on CiviCRM is coming along well and now is the time to get involved!...CiviCRM is now ready to be integrated into other applications. If you have or are considering an NPO application that stores CRM data (contacts, relationships, actions), please take a look at CiviCRM as a basis for your project.
CiviCRM is open source and as long as you contribute your modifications to CiviCRM back to the community, you can do anything you want with the software. CiviCRM is already being adapted by consultants for custom applications in fundraising and member management.
...CiviCRM is fully integrated into the Drupal authentication at this time (log into the drupal sandbox site and you're automatically a CiviCRM record). Mambo integration began this week. Anyone up for
helping us with Plone integration?"
CiviCRM is at http://sandbox.openngo.org/crm/