> Nope, been around for over a year now. See: 
> http://openlibrary.org/dev/docs/restful_api.

Nine months, but close enough.  :-)  Don't know how I didn't catch this before.

http://blog.openlibrary.org/2009/08/11/api-with-rdfxml-output-available/

> Now the actual data is stored on the back-end as a JSON blob; I can't 
> speak to whether /all/ of the data from the blob gets reported in the 
> RDF (I suspect it does not, for in many instances there is data in the 
> blob that is not identified in the schema definition) but it may be all 
> you need.

This particular use of RDF is interesting, as is how it maps from whatever 
internal JSON format it's stored in (OL devs: love to know more about how 
you're doing this).

The use of DCTERMS elements is a bit curious: eg. dcterms:tableOfContents isn't 
used; dcterms:identifier includes a leading "/books/"; dcterms:subject is used 
instead of dc:subject for the rdf-bound DDC and LCC values, etc.  I'm assuming 
this is a combination of it being a "simple" mapping and my weak knowledge of 
RDF.

Overall though, looks great.  I don't quite follow how the query API works for, 
say, free-text search (if such is even possible), though.  An endpoint like 
that could provide a decent replacement for Z39.50-style search/retrieve if 
mapped in a way like Dan describes.

MJ
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