Social Circles intends to partially reveal the social networks that emerge in mailing lists. The idea was to visualize in near real-time the social hierarchies and the main subjects they address. When subscribing to a mailing you never know who the principals are, how many people are listening or what subjects they are talking about. It's like entering a meeting room with plenty of people in the darkness and then having to learn who is who by just listening to their voices.

Social Circles aims to raise the lights in that room just enough to let you enhance your perception of what?s happening. At a glance it allows an easy way of grasping the whole situation by highlighting who is participating, who is "visually" central to that group, and displaying the topics everyone is talking about. How does the list structure itself? Is it moderated? Is it chaotic?