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On Apr 21, 2009, at 10:55 AM, Dr R. Sanderson wrote: > How is this 'new type' of index any different from an index of OAI-PMH > harvested material? Which in turn is no different from any other > local > search, just a different method of ingesting the data? This "new type" of index is not any different in functionality from a well-implemented OAI service provider with the exception of the type of content it contains. While OAI is/was popular, it was never really embraced by the commercial journal article indexers (Cambridge Scientific Abstracts, Web of Science, etc.) nor the commercial journal article publishers (Springer, Elsevier, etc.). Consequently their scholarly and in high demand content was not indexable. I think, but I'm not sure, Serials Solutions has made deals with such publishers to aggregate their content into a single whole and provide a more unified search interface it. We can see similar things in regards to OCLC and WorldCat. Maybe these "new indexes" could be called "mega indexes" against traditional library content. Personally, such a thing is part of what I have been advocating as the content of "next generation" library catalogs. [1] [1] http://www.library.nd.edu/daiad/morgan/musings/ngc-in-15-minutes/ -- Eric Lease Morgan University of Notre Dame