Verenigd Koninkrijk
- The British Library
- National Library of Scotland
- National Library of Wales
- BUBL Bulletin Board for Libraries
- CILIP - Chartered Institute of Library and Information Professionals
- COPAC - Landelijke Online Public Access Catalogue
- CURL - The Consortium of University Research Libraries
- HERO - Bibliotheekcatalogi voor het hoger onderwijs
- UK Higher Education and Research libraries - (onderhouden door de University of Exeter)
- UKOLN - The UK Office for Library and Information Networking
Ierland