The International Federation of Library Associations
Internet Public Library
The Electronic Library
The Electronic Libraries Programme
M25 Consortium of Higher Education Libraries
Bath Information and Data Service
COPAC
Project EARL
RLG – The Research Libraries Group
UKOLN WWW service
Europeana
The www Virtual Library
Nacionalna i univerzitetska biblioteka “Sv. Kliment Ohridski” Skopje
Univerzitetska biblioteka “Svetozar Markovic” Beograd
Nacionalna i sveucilisna knjiznica, Zagreb
Narodna in univerzitetna knjiznica, Ljubljana
National and University Library of RS
University of London Library
Oxford Libraries
Harvard University Library
Yale University Library
Stanford University Library
University of California-Berkeley
University of California-Los Angeles Library