sentences:  While Euclid has been successful thus far – reported as “healthy and growing” in early 2006 – Cornell's heavy investment in the project and the ever-changing nature of the academic journal field where “sustainability is a moving target” has led to the exploration of other publishing avenues.Another initiative with relevance to the development of DPubS, arXiv, came to Cornell along with its initial developer Paul Ginsparg in 2001.Institutional repositories, which serve as a central database of scholarly work such as preprints and postprints of journal articles, have become increasingly popular