EditorialGuy - 5:59 pm on Jul 3, 2013 (gmt 0)
#1 is a "big brand" (About.com).
#2 is an EMD site that I'd never heard of, and which apparently got lucky. (I don't get the impression that the owner was trying for a decent ranking.)
#3 isn't a "big brand," but is a local transit authrity.
#4 is a reasonably big brand.
But the biggest brands (Wikipedia and the UGC megasite) are down at positions 7 and 8. Not too many months ago, they probably would have been #1 and #2, not necessarily in that order. (Mind you, I'd argue that the Wikipedia stub shouldn't be on page 1 of the SERP, period, but Google seems to be extremely forgiving of big brands even if it doesn't always rank them at the top of the SERP.)