Haven't seen this posted about on here yet, and it's pretty interesting.
Official Google Webmaster Central Blog: Introducing schema.org: Search engines come together for a richer web
See Person - schema.org for an example of the markup.
Official Google Webmaster Central Blog: Introducing schema.org: Search engines come together for a richer web
Today we’re announcing schema.org, a new initiative from Google, Bing and Yahoo! to create and support a common set of schemas for structured data markup on web pages. Schema.org aims to be a one stop resource for webmasters looking to add markup to their pages to help search engines better understand their websites.
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See Person - schema.org for an example of the markup.