I missed this panel at SXSW, but was interested in learning more about microformats.
Designed for humans first and machines second, microformats are a set of simple, open data formats built upon existing and widely adopted standards. Instead of throwing away what works today, microformats intend to solve simpler problems first by adapting to current behaviors and usage patterns (e.g. XHTML, blogging).
I found Tantek Ã?elik’s (Chief Technologist, Technorati) slides from SXSW entitled Microformats: Evolving the Web and I highly recommend skimming through them.