One of the ways Google uses to determine page rank is to see if the search term is in the URL name. Programs like WordPress and Drupal have a very nice feature to rewrite article URLs to use the article name as the URL.
Here is an example from a Drupal-powered site:
http://www.scienceblog.com/cms/studies-ids-modifiable-factors-associated-exceptionally-long-life-15452.html
Here is an example from a WordPress-powered site:
http://iamfourzerotwo.com/2008/02/11/rambo-call-of-duty-4-style-shoot-em-up/
In each of these, the spaces in the article title have been changed to dashes. Some of the default CMS structure still exists in the URL – in Drupal it still has the serial number of the article and in WordPress it still has the date.
Ideally, this feature would be one users could optionally turn on; it would not be as useful for non-ASCII languages without a feature to rewrite the post title as ascii.
URLs should also be able to be configured to use section names, such as http://www.mysite.com/sports, which would then go to the appropriate section without any of the other Campsite naming structure.
This feature is also likely to result in greater search engine optimization, as URLs with the keywords tend to be placed higher in search results.