title: SEO Microdata (data-vocabulary.org, schema.org ) and HTML5
body: <p>I have just read a lot of different information about Data-Vocabulary.org and Schema.org about how it's good for SEO. But I'm really not sure that anyone uses it in a real site. Am I right?</p>
  
  <p>If not can someone provide some links to real site with this stuff?</p>
  
  <p>And second question does it make sense to use it in HTML5?</p>