Sure. Here's a vacuum test study I performed on this very subject. Looks at the relative effects of words in URL, Title, Headings, and Body: http://www.mikeindu

Sure. Here's a vacuum test study I performed on this very subject. Looks at the relative effects of words in URL, Title, Headings, and Body: http://www.mikeindustries.com/blog/archive/2006/01/the-roundabout-seo-test http://www.mikeindustries.com/blog/archive/2006/01/the-round... It's a little TLDR, but the point above is spelled out near the end in the final "conclusion". Cheers.