OrgLDAP is an extensible LDAP user management application supporting groups, *NIX (POSIX, Shadow), Samba and other account types, SSH public keys and sudo roles. It includes a reusable extensible library and a web-based front-end.
A graphical user, group, and computer account manager for LDAP servers. Doesn't try to be the end-all LDAP tool, focuses on making user management quick and easy. (For linux/gnome, windows, MacOS coming RSN)