Online forums represent one type of social media that is particularly rich for studying human behavior in information seeking and diffusing. The way users join communities is a re...
Much thinking about digital cities is in terms of community groups. Yet, the world is composed of social networks and not of groups. This paper traces how communities have changed ...
Technology, it is argued, has the potential to improve everyone's life: from the workplace, to entertainment, to easing chores around the home. But what of people who have ne...
Designers of children's technology are often more interested in user motivation than those who design systems for adults. Since children's technology often has aims such...
In this paper we seek to improve our understanding of human mobility in terms of social structures, and to use these structures in the design of forwarding algorithms for Pocket S...