The ever excellent Malcolm Coles discovered that Google is essentially treating some brand searches as site: command queries – allowing these brands to dominate natural search space, although how these brand queries are decided isnt quite clear as yet. Malcolm outlines a number of pertinent examples inclduing Apple, The Guardian and Sky Sports.
……..and the Big G itself has confirmed that this is a ranking change, telling Search Engine Land:
“We periodically reassess our ranking and UI choices, and today we made a change to allow a larger number of pages from the same site to appear for a given query. This happens for searches that indicate a strong user interest in a particular domain.”