SEO microdata

What is SEO microdata and how to do it?

http://www.quicksprout.com/the-advanced-guide-to-seo-chapter-3/

How to find the Entity type I want to use?

For example, if I want to find an Entity type for a hotel, then search Google with keyword hotel site:schema.org

How to test my page?

http://tools.seomoves.org/microdata/?url=tools.seomoves.org%2Fmicrodata%2Fexample%2F

http://foolip.org/microdatajs/live/

ref:

http://drupal.org/node/1588582