Joi (Joi Ito's Web: Village funeral.) has a great post today about musubiai. Forgive my translation, but Joi describes it as doing whatever is necessary--anything--for a next door neighbor in need.
With the recent events in New Orleans (aided and amplified by television) we see a mass example of this. At the same time, we see it completely corrupted in gated-community America and in the nameless, faceless world of big brands.
I have no terrific insight for you, just a word that I'm sure I'll be using almost every day.