As Hannah Arendt understood, the modern democratic state happened when people in public spaces began interacting, and thus began taking action together. For this reason, she identified the medival carnivals and fair days of Europe as the seat of literature, culture, debate, and politics. The rule goes like this: make a public, get action. Today, Delicious does for the internet what open-air markets did for medieval society. Low key, high-information, continuous-formation community building.