I just blogged elsewhere on BibSonomy, an alternative to del.icio.us that also includes bibliographical references. The core terminology used by the system (for bibliographical information) is based on BibTeX but entries can also be dumped to other formats. See, for example, a portion of my references in BibTeX or RDF.
However… which RDF terminology for BibTeX? Unfortunately, there are several around. BibSonomy uses the
http://swrc.ontoware.org/ontology# namespace (usually referred to as “SWRC”), defined by ontoware. The bibtex2rdf tool by the Simile Project at MIT uses the
http://simile.mit.edu/2006/11/bibtex# namespace (unfortunately, there is no namespace document). Incidentally, Steve Cayzer blogged yesterday on his usage of yet another tool, also called bibtex2rdf, that uses the
http://www.edutella.org/bibtex# namespace (again, no namespace document). And, of course, there is also an example in microformats that could be used with either GRDDL or RDFa.
And all these vocabularies are different, unfortunately. For example, the ontoware version (used by BibSonomy) has a major flaw in my view: authors are just listed as individual property-values, without enclosing them into a
Seq or (better) in a collection. Anybody who has ever co-authored a paper knows that the order of contributors is important. The usage of VCard, Dublin Core, FOAF, etc, is also different from one tool/vocabulary to the other. Pity… Maybe it is worth for the community to sort this out?