GANYMEDE: GASH 2
- a portable and customizable directory management system.
- http://tools.arlut.utexas.edu/gash2/

Linux NIS(YP) Server and Tools
- The Network Information Service (NIS) provides a simple network lookup service consisting of databases and processes. It was formerly known as Sun Yellow Pages (YP).
- http://www.linux-nis.org/nis/

Atlantic Media's AboutFace
- employee directory products help consolidate disparate employee data information into one resource.
- http://www.aboutface.com

NetVision
- metadirectory product for integration of NDS, NT, and Notes, directories.
- http://www.netvision.com/

Internet Directory Consortium
- composed of companies with a common interest in the implementation, testing, deployment and usage of directory (both LDAP and X.500) products in the market place.
- http://www.opengroup.org/idc/

An LDAP Roadmap & FAQ
- A tutorial aid to navigating various LDAP and X.500 resources on the Internet
- http://www.kingsmountain.com/ldapRoadmap.shtml

MaXware Enterprise Meta Solution
- An enterprise-wide, vendor-independent solution that enables large end-user organizations and service providers to access, manage and maintain mission-critical data that is stored in different data repositories.
- http://www.maxware.com/