I got a hit for the string "lovecraft flowchart," which brought the searcher to this old post about a blogpost flowchart. But the search interested me. I wonder what they were looking for? So I checked it out. A couple of interesting things turned up.
The NYT has this hilarious evolution of a geek flowchart. Seems it all hinges on "exposed to D&D early in life." I note with suitable irony that "blogging about diagrams" is part of the chart.
But I think this chart from the Cthulhu for President 2008 website was closer to what they were looking for: