| curl.ac.uk | Consortium of University Research Libraries |
| arl.org | Association of Research Libraries |
| portico.bl.uk | Gabriel : Gateway To Europe's National Libraries |
| uchicago.edu | The Center for Research Libraries |
| carl-acrl.org | California Academic & Research Libraries (carl) |
| carl-abrc.ca | Association des bibliothèques de recherche du Canada (ABRC) |
| rlg.org | Research Libraries Group |
| knaw.nl | European Preservation Information Center |
| kb.dk | Ligue des bibliothèques européennes de recherche (LIBER) |
| ifla.org | International Federation of Library Associations |
Germany , Niedersachsen , Gttingen