Google now displays site hierarchies in search results
“Google usually shows a green web address, or URL, at the bottom of each search result to let you know where you’re headed. Today we’re rolling out an improvement that replaces the URL in some search results with a hierarchy showing the precise location of the page on the website. The new display provides valuable context and new navigation options. The changes are rolling out now and should be available globally in the next few days.”
http://googleblog.blogspot.com/2009/11/new-site-hierarchies-display-in-search.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+blogspot/MKuf+(Official+Google+Blog)

