Rothmann IT Service DeskTop is a project to create a technological solution for Incident- and Configuration Management. It is based and implemented on the international 'best-practice' standard ITIL®. It is an Add-On to the popular Double Choco Latte.
ISPMan is a system to design massive ISPs using LDAP as the backend.
ISPMan provides a web front end and a command line interface to create virtual domains and manages users, dns information, email infos and httpd setup data for these vhosts.
LIMeTool (pronounced like the fruit), is intended to be a simple and easy interface for managing accounts on an integrated Sendmail/LDAP/Cyrus IMAP installation. It's written in PHP and is realitively easy to configure and expand.