Apologies for people who've already seen this (it's pretty old and comes round fairly frequently on HN), but for those previously unaware, http://trafficwaves.o

Apologies for people who've already seen this (it's pretty old and comes round fairly frequently on HN), but for those previously unaware, http://trafficwaves.org/ http://trafficwaves.org/ is one of the best sites digging into the phenomenon from an "educated layman's" perspective.