New York, Consultants Bureau [etc.]
| Archivage | Début | Fin |
|---|---|---|
| CLOCKSS Archive | 1966 | 2024 |
| Internet Archive | 1970 | 1974 |
| Internet Archive | 1970 | 2005 |
| Library of Congress | 2018 | 2024 |
| LOCKSS Archive | 2012 | 2019 |
| LOCKSS Archive | 2013 | 2018 |
| National Digital Preservation Program, China | 1997 | 2023 |
| National Digital Preservation Program, China | 2008 | 2011 |
| National Library of the Netherlands | 1997 | 2019 |
| Portico | 1976 | 1976 |
| Portico | 1985 | 1985 |
| Portico | 1988 | 1988 |
| Portico | 1994 | 1994 |
| Portico | 1997 | 1998 |
| Portico | 2006 | 2008 |
| Portico | 2011 | 2024 |
| Scholars Portal | 1966 | 2023 |