I just saw Diane Vizine-Goetz demo OCLC’s Terminology Services at the CENDI/SKOS meeting and was excited to see various things out on the public web. For example, the LCSH concept “World Wide Web” is over here:
At the moment it’s not the most friendly human readable display, but that’s just a XSLT stylesheet away (assuming TS follows the patterns of other OCLC Services). I’m not quite sure what the default namespace urn:uuid:D30A7E67-31BF-40A3-9956-9668674FCD84 is. But the response looks like it indicates what resources are related to a given conceptual resource.
And LCSH is just one of the vocabularies available through the pilot service, if you examine the XML you’ll see references to FAST, TGM and MESH + SRU services for each.
But not application/rdf+xml:
curl --header "Accept: application/rdf+xml" http://tspilot.oclc.org/lcsh/sh2008114004
It seems like it would be a pretty easy fix, and pretty important for being able to follow your nose on the semantic web.