The sustainability of digital resources and services in the cultural heritage sectors continues to be a major issue, with work going in in a variety of venues, including the Blue Ribbon Task Force on Sustainable Digital Preservation and Access (see http://brtf.sdsc.edu/ ) (Disclosure: I am serving as a member of this Task Force.)

RLG Programs at OCLC has just produced a very helpful contribution to this discussion in the form of a report by Ricky Erway titled "Seeking Sustainability", which offers a retrospective on success and failures of the RLG cultural materials and Trove.net programs, now discontinued. A link to the  report can be found at:

http://www.oclc.org/programs/publications/reports.htm

Clifford Lynch
Director, CNI