New York : Consultants Bureau, c1992-
| Archivage | Début | Fin |
|---|---|---|
| CLOCKSS Archive | 1936 | 2025 |
| Internet Archive | 1966 | 1977 |
| 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 | 2009 | 2011 |
| National Library of the Netherlands | 1999 | 2019 |
| Portico | 1966 | 1991 |
| Portico | 1992 | 1997 |
| Portico | 1999 | 2000 |
| Portico | 2005 | 2006 |
| Portico | 2007 | 2008 |
| Portico | 2012 | 2024 |
| Scholars Portal | 1992 | 2023 |