Google’s rich snippets are special markups used by webmasters to enhance the Google search results. They often take a while to show up in the search results, and often lead to webmaster confusion on if there are issues with the markup used or just a delay on Google’s side.
That being said, Google has released some webmaster help videos specifically to help webmasters build out these rich snippets. Here they are:
For more in this topic see our rich snippets category.