anallawalla - 11:26 pm on Jul 8, 2013 (gmt 0)
I have always noticed this in reverse, namely, that big brand sites get away with "errors" that would cause a loss of ranking for a small site. News sites can cover numerous topics, yet rank well for most of them, while a small site needs to become an authority for its niche.
I can also see where important niches, e.g. health, can be given special attention to keep the truly reliable sources of information fairly high, provided they don't make a serious error - and MC admits to doing this.