The ZBW Digital Long-Term Archive is a dark archive whose sole purpose is to guarantee the long term availability of the objects stored in it. The storage for the ZBW’s digital objects and their representation platforms is maintained by the ZBW division IT-Infrastructures and is not part of the tasks of the group Digital Preservation. The content that the ZBW provides is accessible via special representation platforms. The special representation platforms are:
EconStor: an open access publication server for literature on business and economics. ZBW DIGITAL ARCHIVE: it contains born digital material from the domains of business and economics. The content of this archive is accessible in open access via EconBiz, the subject portal for business and economics of the ZBW. National and Alliance Licenses: the ZBW negotiates and curates licenses for electronic products on a national level. This is processed under the framework of the German Research Foundation as well as the Alliance of Science Associations, partly with third party funding, partly solely funded by the ZBW. A part of these electronic products is already hosted by the ZBW and counts among the items that are preserved in the digital archive. 20th Century Press Archive: a portal with access to archival material consisting of press clippings from newspapers covering the time period from the beginning of the 20th century to the year 1949.