CROWD - a Single Sign-on (SSO) application that speaks AD, LDAP, OpenID, etc.
- General Info - http://www.atlassian.com/crowd
- CRBS Crowd - http://crowd.crbs.ucsd.edu
- Integrating Custom Apps - http://www.atlassian.com/software/crowd/features/applications.jsp
- Basic Crowd Use - http://confluence.atlassian.com/display/CROWD/Crowd+User+Guide