Electronic resources, Internet resources, digital preservation, access to digital materials, digital repositories, Open Archival Information Systems, OAIS, International Coalition of Library Consortia, ICOLC, metadata, Dublin Core, LOCKSS, Lots of Copies Keep Stuff Safe, JSTOR, PANDORA archive, Royal Swedish Web Archiw3e, Internet Archive Wayback Machine, risorse elettroniche, risorse Internet, conservazione di materiali digitali, accesso a materiali digitali, depositi di materiali digitali, metadati