Here's what Google Webmaster Central says about schema.org: http://www.google.com/support/webmasters/bin/answer.py?answer=1211158 http://www.google.com/support/

Here's what Google Webmaster Central says about schema.org: http://www.google.com/support/webmasters/bin/answer.py?answer=1211158 http://www.google.com/support/webmasters/bin/answer.py?answe... "Google currently supports rich snippets for people, events, reviews, products, recipes, and breadcrumb navigation, and you can use the new schema.org markup for these types, just as with our regular markup formats. Because we’re always working to expand our functionality and improve the relevance and presentation of our search results, schema.org contains many new types that Google may use in future applications." "Google doesn’t use markup for ranking purposes at this time—but rich snippets can make your web pages appear more prominently in search results, so you may see an increase in traffic."