Most interesting (partly because it's one of the few advance peeks) is Alan Mutter's take in Reflections of a Newsosaur on Doctor's conclusion that community knowledge has been depleted in this era as local reporting heft has diminished.
Indeed, he calls it "tens of thousands of years of community knowledge" lost as experienced journalists left or were moved out of their roles. Mutter's review doesn't suggest the involvement of new voices in start-ups has been able to replace the loss.