For about 18 months now, I’ve been chairing the W3C’s Task Force on embedding RDF in HTML. In simpler terms, this means my little group is defining how you can add extra structure to your HTML, so that, if you announce a talk, your contact information, a document license, or any other metadata, a small bit of extra markup can help standard tools extract this data and make use of it automatically. Your friends and colleagues can add your contact info to their address book or the date of your thesis defense to their calendar automatically.
The technology is RDFa. I am giving my third talk about it today at WWW2006. It’s quite easy to write RDFa, and it’s quite easy to extract it using our neat bookmarklets.
We just launched rdfa.info, the central web resource for all things RDFa.