I think this is worth emphasizing. Pete Johnson’s mail in the SW IG:
The Dublin Core Metadata Initiative currently has a proposed update to
its specification for expressing DC metadata in X/HTML meta and link
elements  available for public comment .
That document serves as an X/HTML “meta data profile” document, and
although this isn’t stated explicitly in human-readable form in the
document itself – it will be in the final version! -, it includes a
GRDDL profile transformation link. So for any XHTML instance using this
profile, a GRDDL-aware processor can extract the corresponding RDF
triples. The draft XSLT transform itself is currently hosted elsewhere,
but will be assigned a DCMI URI when it is more fully tested.
Comments are welcome, and should be sent to the DCMI Architecture
Community mailing list .
This is a major step in bringing the Dublin Core metadata into RDF smoothly…