diberry - 9:34 pm on Jul 9, 2013 (gmt 0)
If Google categorizes things first and then they apply the algo factors, then it could possibly be a way that that they would rank industries differently. They're different topics (different industries), so the factors like linking would only be applied amongst an industry or topic.
I'm wondering if this could also explain some of the really oddball stuff we've seen in the past couple of years. Tedster thought "zombie traffic" might be some kind of user testing Google was doing, but I don't think we ever really figured out what kind of "testing" would go on as long as some people were seeing it. But what if it's just that they aren't sure what niche to group a site into and they keep trying new things?