[microformats-discuss] Discovery of microformats

[Joshua Porter]

In trying to understand why I should, as a developer, produce  
microformat code, I realized that I don't know how to find out which  
sites use microformats and which don't.  (Tantek's pointer on  
microformats.org the other day reminded me of this)

How would I (or my browsing/aggregating software) discover that a  
site is using microformats?

Thanks,

josh