If you were to pick a handful of the most iconic diagrams across internet research, theory, and history, what would they be? I'm trying to compile as many diagrams as possible. They could also be graphs, charts, photographs, drawings, etc. They could come from sociology, anthropology, computer science, physics, etc. They could also relate to social theories that are particularly prescient for internet studies. For example, I think the diagram of distributed networks in Paul Baran's 1964 "On Distributed Communications" ( http://www.rand.org/content/dam/rand/pubs/research_memoranda/2006/RM3420.pdf, diagram on p. 16 of the PDF) is a great example of what I'm looking for. For another example in the theoretical realm, perhaps the "two-step flow" model from Katz & Lazarfeld's 1955 Personal Influence ( https://www.utwente.nl/cw/theorieenoverzicht/Theory%20Clusters/Mass%20Media/..., scroll down for the diagram). Does anyone else have pointers to any other iconic diagrams? Thanks, Alex --- Alexander Leavitt, Ph.D. USC Annenberg School for Communication & Journalism http://alexleavitt.com Twitter: @alexleavitt <http://twitter.com/alexleavitt>