Alex997 - 6:44 am on Aug 30, 2012 (gmt 0)
So nobody else noticed a disassociation between singular and plural search terms all of a sudden?
London <co type> firm = position 13
London <co type> firms = position 313 (previously also about 13)
So either I have a specific penalty for all 'firms' queries or google's latest algo is dummer than previous versions.