Digital Libraries (DLs) are extremely complex information systems that support the creation, management, distribution, and preservation of complex information resources, while allowing effective and efficient interaction among the several societies that benefit from DL content and services. In this paper, we focus on our experience facing challenges of building, maintaining, and developing the Networked University Digital Library (<A HREF="http://www.nudl.org/">www.nudl.org</A>), an extension of the Networked Digital Library of Theses and Dissertations (<A HREF="http://www.ndltd.org/">www.ndltd.org</A>). NUDL is a worldwide initiative that addresses making the intellectual property produced in universities more accessible, stimulating international collaboration across all disciplines. We detail technological aspects of our solutions and research activities carried out to provide powerful and enriched services for the communities served by this initiative.
Digital libraries; Information systems; University digital library
