This presentation was given at SemTech 2009. RDFa combines the power of RDF with the ease of publishing of HTML, making it the missing link of the semantic web. Now anyone who is able to publish to the web -- from bloggers, to corporates to governments -- can easily publish to the semantic web. This session will introduce the key ideas of RDFa and its syntax, by way of a case-study of a project from a UK government department. We'll also survey the state of support in tools and software.