Library of Congress ServicesThe Library of Congress Library Services - contains a great deal of information both useful and interesting to the librarian and information science specialist in the following areas:
- Research & Reference
- Collections & Services
- Library of Congress Catalogs
- Catalogs of Other Libraries - access to over 220 online library catalogs, including international.
- NISO Z39.50 Information Retrieval Protocol - National Information Standards Organization page; "tracks Z39.50 resources, international projects related to the standard, Z39.50 freeware, and Z39.50 related developments."