van de Sompel describes his project simply as doing Web 2.0 type of things with scholarly communication with additional stuff to add to the value chain of scholarly communication. It is geared towards the machine readable web.
The ORE project brings together URI, RDF and Vocabularies. It has all to do with the semantic Web. The beta version of ORE was published June 2008. Best part of that document is the primer to understand what the project is really about. The primer though, will be completely rewritten by the end of September to make it less technical.
More info at:
Van de Sompel, H. and C. Lagoze (2007). Interoperability for the Discovery, Use, and Re-Use of Units of Scholarly Communication CTWatch Quarterly 3(3): 32-40. http://www.ctwatch.org/quarterly/articles/2007/08/interoperability-for-the-discovery-use-and-re-use-of-units-of-scholarly-communication/