Found via WaterCoolerGames (which found it via an NPR story I also heard a snippet of): The World Rock Paper Scissors Society website, complete with history, rules, strategy, and merchandise. In college, I advocated RPS as a drinking game, a position bolstered by the assurances of my Chinese-American girlfriend of the time that RPS was frequently used by old Chinese men for exactly that purpose. Sadly, I see little acknowledgment of this important facet of RPS history at the site.