Robb Shecter, Esq., creator of OregonLaws.org and WebLaws.org, has given me permission to repost the following. Please feel free to respond in the comments to this post or by contacting Robb directly.
The “new way forward” on the web for metadata looks destined to be html5 + microdata based on a schema.org vocabulary. CreativeWork looks like the best candidate for this:
Anyone know about a project doing this? I’m about to begin experimenting with it.