Steven Spielberg’s Ghost Town suggests the social networking theme will take, or at a minimum test, the boundaries of segmentation. In this case not market segmentation, but segmentation of social circles. The main question I raise is “Do I want a lot of distributed social network tools?” Of course, I am in a lot of different networks, many of which have zero or close to zero overlap. And I would like to control this overlap with social networking tools. Perhaps a product like SocialThing, which allows me to participate in a lot of different social networks through one site provides the necessary control.