Re: ontology entity-instance backlinks

> developers to mark up their data in a way that it can simply be accessed via
> the Semantic Web. Both RDFa and HTML2 are addressing this issue, but there

i assume you mean XHTML2? HTML5 also has some metadata stuff

> is still no simple way to html tag specific local web site data as instances
> of a widely used ontology located at a remote site. You  might envision a
> generally accepted ontology on a domain such as  "wine" that many of the
> individual html web sites on that subject would link their data to as
> instances. A capability to search that ontology could lead back to the
> marked up instance data,

this is an interesting idea. are you proposing some sort of pingback service for ontology hosts?