Today I published the 100th Technometria podcast on IT Conversations. The show was a conversation with Elias Torres and Ben Adida about RDFa. I learned about RDFa from Elias and Ben when we were in Beijing for WWW2007 last April. The idea is simple: RDF is nice but requires people write metadata separate from the content it describes. Why not embed that semantic information inside the HTML as attributes? This is a pretty cool idea--complimentary to the idea of microformats, I think--that just might make the semantic web palatable enough that it actually happens.

Bonus: Here's an RDFa Primer