Google plans on making improvements to their search results that will replace some page URLs by showing the exact location of a sites web page within a hierarchy. Typically, page URL’s are known to be too long, too short, or too obscure. So, the goal & intent behind this change will be to help provide more valuable context and information about a page as quickly as possible to the searcher.

For example,

Old hierarchy:

The URL above does not provide any additional information that may be of value.

New hierarchy:

With the new URL hierarchy it will provide additional & useful information about the specific page by organizing and categorizing the different sections a site may have related to the topic. Also, each phrase in the green line will be an actual link, allowing a searcher to jump directly to the broader category/topic from the search results page.

Google will be analyzing a site’s “breadcrumbs” to best represent the website in the results, so it is important that each page is properly organized & structured within its own sites’ hierarchy.

*UPDATE 11/18/09 – Seems as if the New site hierarchies is beginning to take effect on our site.

Image courtesy of Tomek – finds new url hierarchy on lawfirms.com .

Source: http://blog.searchenginewatch.com/091117-153015