Tech specs for DSpace.org
DSpace is an out-of-the-box open source software package for creating repositories focused on delivering digital content to end users and providing a full set of tools for managing and preserving content within the application. DSpace is the most widely used repository software platform (open source or proprietary), with more than 2,000 installations worldwide representing a continuously growing and active user community.
http://www.dspace.org/techspecs
Use case highlight: The most common use of the DSpace software is by academic and research libraries as an open access institutional repository for managing and disseminating scholarly output. There are also many organizations using the software to host and manage subject based, dataset, or media-based repositories. See examples here: http://dspace.org/use-cases