The National Science Foundation and DELOS, the European Commission sponsored Network for Digital Libraries, supported a working group to de.ne a research agenda for digital archiving and preservation (DAP-WG) within the context of digital libraries. The report of this group, Invest to Save, has laid out a range of research challenges that need to be addressed if we are to make progress in the development of sustainable digital libraries. DAP-WG considered archiving and preservation needs and the research that had been conducted to address these. It concluded that research in this domain could bene.t from being expanded and refocused—new research communitiesmust be engaged, the approaches to conducting the researchmust be mademore rigorous, and a signi.cant shift in what was being researched needed to be taken. The Group identi.ed twenty-two key research activities worthy of investigation.
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