I think I figured out Black Noise. In While I'm Still Here, Trent found out yesterday that the world was ending. But today he found out that it was not in fact the day the world went away and that the guy who told him the world was ending was actually a quack who made that prediction three other times and just sold a lot of books off of it. So Black Noise is just Trent facepalming himself.
Does that sound about right?