The link above takes you to an article at Pelgrane Press's See Page XX, about the forthcoming Nights Black Agents and a tool for designing a Conspyramid - a hierarchical structure chart depicting a supernatural conspiracy from the ground level cells up to the vampiric menace organising it, that can have in game effects.
I absolutely love the idea behind it, and how it can be used in game. The concept itself isn't just limited to Gumshoe games, it can be applied to any conspiracy based story.
It's a beautiful idea.
I encourage you all to read it, and invest in NBA's when it comes out.
Actually, you can pre-order it now and get an advance pdf copy for free.