Crowd is a Web-based single sign-on (SSO) tool that simplifies application provisioning and identity management. It has connectors for popular open source projects like Apache (via Perl) and Subversion. Pre-built connectors for other popular commercial products like Jive Forums, JIRA, and Confluence are also available.
direx - directory dino allows you to run your own Web site directory. It is easy to setup, and runs correctly out of the box. Experienced Web masters can also customize the HTML layout. Static HTML pages are created for low server load and good search engine position. It features unlimited categories, an automatic check for double entry of URLs, searchability, and sendmail support.