Digital preservation relies on technological infrastructure (information and communication technology, ICT) that has considerable negative environmental impacts, which in turn threaten the very organizations tasked with preserving digital content. While altering technology use can reduce the impact of digital preservation practices, this alone is not a strategy for sustainable practice. Moving toward environmentally sustainable digital preservation requires critically examining the motivations and assumptions that shape current practice. Building on Goldman's challenge to current practices for digital authenticity and using Ehrenfeld's sustainability framework, we propose explicitly integrating environmental sustainability into digital preservation practice by shifting cultural heritage professionals' paradigm of appraisal, permanence, and availability of digital content.The article is organized in four parts. First, we review the literature for differing uses of the term "sustainability" in the cultural heritage field: financial, staffing, and environmental. Second, we examine the negative environmental effects of ICT throughout the full life cycle of its components to fill a gap in the cultural heritage literature, which primarily focuses on the electricity use of ICT. Next, we offer suggestions for reducing digital preservation's negative environmental impacts through altered technology use as a stopgap measure. Finally, we call for a paradigm shift in digital preservation practice in the areas of appraisal, permanence, and availability. For each area, we propose a model for sustainable practice, providing a framework for sustainable choices moving forward.

No abstract

In 2011, Hosni Mubarak abdicated his position of president-for-life after peaceful protests across Egypt. Demonstrators in these protests used social media platforms like Twitter to communicate directly with a global audience, but tweets are ephemeral and there are no standards or best practices for their collection and preservation. Using the revolution in Egypt as a case study, this paper serves as a guide to collection developers who are interested in collecting subject-centered collections of tweets. We will discuss how to collect tweets using Twitter's application programming interface (API) as well as collection development issues related to Twitter's role in the Egyptian revolution. These issues include determining the scope of the collection, quantitative and qualitative collection methods, separating signal from noise, and navigating vernacular and formal languages. We will consider the Twitter platform from an archival perspective and discuss best practice in archiving a collection of tweets. To present the kinds of materials that a subject-centered collection of tweets might include, we will conclude with a brief examination of tweets collected during the eighteen-day revolution in Egypt.

No abstract