[uf-discuss] microformats and seo - numbers

[Glenn Jones]

Hi All

I am going to be doing a presentation on microformats at a SEO
conference in a few weeks. Last time I did this talk the Q&A was full of
question asking for figures on the effectiveness of rich snippets at
increasing site traffic. 

Does anyone know of any quantitative research on this subject.  I have
had a quick look on the web and cannot find anything.

Cheers
Glenn Jones

PS old version of the tal, if your interested -
http://www.slideshare.net/glennjones/microformats-and-seo