In case anyone missed these keyword density research articles. http://www.gorank.com/research/ They compare Google to the new Yahoo. Some very useful (depending how you look at it) nitty gritty info. - sean
Analysis of Keyword Presence in Result URL 37% of all result URLs contained the keyword somewhere in the URL. 23% of URLs contained the keyword somewhere in the path. 1.7% of the URLs contained the keyword in the directories. 22% contained the keyword in the filename. 4% of the result URLs contained the keyword in a GET query. 10% of the result URLs contained the keyword in the domain. isn't the presence of keywords in url more imp than the keyword density ???
Old thread has resurrected. Those data are from 2004. There were few Google algo update so they are no more accurate, probably.