Data sources

Name	Description	License	Links	Format	Status
Harvard Library Cloud	Bibliographic records of the Harvard university accessible as WebAPI	CC0	http://librarycloud.harvard.edu/v1/api/item/	JSON API	In progress
North Rhine-Westphalian Library Service Center's (hbz) Linked Open Data	linking open bibliographic data	CC0	http://lobid.org/api	JSON API	Planned
Cambridge University Library	Access to library catalogues	mixed	http://www.lib.cam.ac.uk/api/	XML/JSON API	Postponed
DBLP	On-line reference for bibliographic information on major computer science publications	ODC-BY 1.0 license	http://dblp.uni-trier.de/faq/How+can+I+download+the+whole+dblp+dataset.html	XML	Postponed
CERN data set	Bibliographic Data from Books in the catalog (CDS) of CERN Library	CC0	http://library.web.cern.ch/library_projects/bookdata	XML/Marc21	In progress
Open Library	spinoff of The Internet Archive	CC0 1.0 Universal license.	https://openlibrary.org/dev/docs/api/books	JSON	Postponed
Cambridge Library	Bibliography Service	GPL	http://data.lib.cam.ac.uk/endpoint.php	SPARQL	Postponed
British Library	Bibliography Service	CC0 1.0	http://bnb.data.bl.uk/flint	SPARQL	Postponed
"Open Bibliography Data" seems to be dead...
What do you think about http://data.lib.cam.ac.uk/endpoint.php and http://data.lib.cam.ac.uk/datasets.php