After getting a couple of recent phone calls about some sites that I had built about 6 months ago I wondered where the traffic was coming from. Come to find out it was Yahoo search results. Although the keywords were not very competitive the results where #1-#5 every time. None of these sites have backlinks. They do not even show up in the top 100 for Google. Also I never paid for anything, no site submission only the suggest a site link (or some other service 6 months ago). In fact 1 site I never even bothered to promote but still was #2. I had originally built them With SEO in mind I just did not have time to promote them with backlinks. This shows the focus Yahoo has put on on-page criteria. Any suggestions on the idea that Yahoo might use the "Authority" theory like Google? The nice part is if SEOing for Yahoo is easier it gives you some wiggle room for making promises to clients for performance. If I can show them fast results in Yahoo and MSN it gives my time to work on optimizing for Google. Any thoughts or more importantly...anyone find this to be untrue?