LDAP
Products, Standards and Organizations, AK BK Home - LDAP Schema Viewer, Brad Marshall's LDAP Documentation, DSML Tools, Global Knowledge Network, IBM Redbook: Understanding LDAP, IBM Redbook: Using LDAP for Directory Integration, LDAP Guru, Linux Directory Services, OpenLDAP, wanderlist - LDAP Resources
X.500
CriticalPath InJoin Directory Server, eTrust Directory, ISODE 8.0.1 for Linux, MessagingDirect M-Vault, NEXOR Directory, Solstice X.500 Directory Products, X.500 products available from Brunel University
An LDAP Roadmap & FAQ
A tutorial aid to navigating various LDAP and X.500 resources on the Internet
Atlantic Media's AboutFace
employee directory products help consolidate disparate employee data information into one resource.
GANYMEDE: GASH 2
a portable and customizable directory management system.
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.
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).
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.
MessagingDirect
developers of standards based electronic messaging and directory software. The company provides E-commerce solutions based on secure embedded messaging.
NetVision
metadirectory product for integration of NDS, NT, and Notes, directories.
Understanding Directory Services
The companion site to "Understanding Directory Services", a book providing a technical explanation of directory service technologies. Includes information on X.500, LDAP, Active Directory, and Novell Directory Services.