I am not sure if this is new but it seems if you search in Yahoo for www.domain.com, Yahoo will return results as if you submitted a site command to Yahoo. For example, a search on www.seroundtable.com returns about 18,800, only from seroundtable.com.
If you conduct a true site command at Yahoo Search, i.e. site:www.seroundtable.com, Yahoo will automatically redirect you to Yahoo Site Explorer. Yahoo actually started redirecting these types of queries to Site Explorer almost exactly two years ago, today.
Has Yahoo decided using a simple www.domain.com syntax should stay on Yahoo Search and not be redirected to Site Explorer? Has Yahoo always returned a site command like result set for www.domain.com searches? I know Google does not return site command like results for a www.domain.com search.
Forum discussion at DigitalPoint Forums.