Dortmund University Library catalog data has been opened up on March 1st, 2011. As announced in the libraries blog 1,2 Million bibliographic records are released into the public domain under a CC0 waiver.
The data is released in cooperation with the North Rhine-Westphalian Library Service Center (hbz) and adds to the already opened data by other libraries of the hbz network (see the overview of open data from the hbz library network).
The announcement furthermore states:
With this release we take a first step to Linked Open Data. Data from different sources, e.g. also catalog data, will be integrated in a web of data which is also called “Semantic Web”. Dortmund University Library’s data has first to be converted into web-compliant “Linked Open Data”. This happens in cooperation with the hbz.
The data was already converted to RDF using the Bibliographic Ontology (Bibo) and is now part of the Linked Open Bibliographic Data service lobid.org.
Questions and feedback regarding the data release can be sent to firstname.lastname@example.org.