Historically, human social experience appears to have been marked by two major changes in social organisation. It is unlikely that these changes were consistent enough over time or wide ranging enough across social groups to have produced actual genetic change, particularly since some groups or tribes did not actively participate in those changes yet still remain unquestionably human. But the human being, a primarily social animal with a massive capacity for learning, adapts to the society it finds itself in and adjusts to it. Those adjustments add to the range of our social psychology, complementing our evolutionary heritage and adding new dimensions of social awareness and interaction. It is early days yet, but it can convincingly be argued that we are facing another monumental change in how we interact with one another through the various manifestations of the internet.