There's that green structure link in search results, like seen below:
When I'm looking at the HTML of that page, there's just a simple place at the bottom with categories:
<tbody>
<tr data-count="1" class=" ">
<td class='' ><span class=''><a href='/topsites/category/Computers/'>Computers</a> <span class='text-gt'>></span> <a href='/topsites/category/Computers/Hacking/'>Hacking</a> <span class='text-gt'>></span> <a href='/topsites/category/Computers/Hacking/Hardware/'>Hardware</a></span></td> </tr>
</tbody>
This is the eample page: http://www.alexa.com/siteinfo/hackaday.com
How can I encourage Google to do the same for my site?