RDFa

At XTech 2007 in Paris, France, last week, Elias Torres presented one of the best talks on RDFa to date, Open Data in HTML, which was above all fascinating for the demonstration of how easy it was to add new actions to Michael Kaply and his RDFa addon to the Operator plugin for Firefox, and showing finding places on maps, adding events to a calendar and people to a contacts list from an RDFa-enhanced webpage.