Anthony Giddens, British sociologist and one of my long-time personal guiding lights, has characterized the primary interest of sociology as an effort “to explicate how the limitations of individual 'presence' are transcended by the 'stretching of social relations across time and space.' It' always seemed to me that the growing adoption of social technologies--like this very one here--into our communication practices (activities, coordination, exchange, commmerce, learning, etc.) serves as a direct reflection of this 'stretching of social relations across time and space.' I've felt that these technologies line a frontier defined by concerns that touch our society and culture deeply. And that our very proximity to one another is shaped and informed by our use of these technologies to conduct our lives in non face-to-face communications.