Slides for SemTech talk on RDFa: The Semantic Webs Missing Link | webBackplane
Mark Birbeck did a presentation on using RDFa to expose the data on your website. This was at SemTech 2009 on RDFa, and the slides are above. The PowerPoint itself contain speakers notes which will explain quite a lot of what is going on, so if youre interested then its probably worth downloading:
via Slides for SemTech talk on RDFa: The Semantic Webs Missing Link | webBackplane.