TRICK: As you may know, when you conduct a search at Yahoo you are actually getting the results from Google. That will change very soon when Yahoo dumps Google in favor of their own search engine. So where will your site show up in the new Yahoo?
To look into the future, type in a search like “malls edmonton” at Yahoo. What you will see are the Google powered results.
However, if you add “&tmpl=E088” to the end of the query in your address bar eg. http://search.yahoo.com/search?p=malls+edmonton&ei=UTF-8&fr=fp-tab-web-t&cop=mss&tab=&tmpl=E088 you will see the future Yahoo results.