Paul Shabajee pointed me at this article, about the Australian Literature Gateway. Contains the following interesting quote:
"Although AustLit makes its data available in an XML format, this is a far cry from making it available in a standard, reusable format. The problem we face is that we are unsure of what standard to use. If RDF or DAML, which vocabulary? If Topic Maps, which serialisation format and which topic types and standard identifiers? If as plain XML, which schema? "