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O nline spaces that enable shared public interpersonal communications are of significant social, organizational , and economic importance. In this paper, a theoretical model and associated unobtrusive method are proposed for researching the relationship between online spaces and the behavior they host. The model focuses on the collective impact that(More)
Modern work is a highly social process, offering many cues for people to organize communication and access information. Shared physical workplaces provide natural support for tasks such as (a) <i>social reminding</i> about communication commitments and keeping track of collaborators and friends, and (b) <i>social data mining</i> of local(More)
The availability of technologies enables a new class of location-aware information systems that link people-to-people-to-geographical-places (P3 systems). P3 systems can strengthen the relationship between social networks and physical places. They can also help individuals leverage location information to make new social ties and coordinate interactions(More)
Like archaeological Tells, large mounds resulting from the accumulation of human settlement debris, the remains of virtual communities can inform researchers about phenomena operating at many levels. However, for excavations to be effective they need to be conducted within the framework of a scientific research program. The theory of interactive(More)
Prior work has demonstrated that the impact of individual information-processing limits can be observed in dynamics of mass interaction in asynchronous collaborative systems (Usenet newsgroups and email lists). Here we present the first evidence of such impacts on synchronous social interaction environments through the analysis of an Internet Relay Chat(More)
This paper provides a comprehensive review of empirical research into user contributions to computer-mediated discourse in public cyber-spaces, referred to here as virtual publics. This review is used to build a systems model of such discourse. The major components of the model are i) critical mass, ii) social loafing, and iii) the collective impact of(More)
Recently, we started to experience a shift from physical communities to virtual communities, which leads to missed social opportunities in our daily routine. For instance, we are not aware of neighbors with common interests or nearby events. Mobile social computing applications (MSCAs) promise to improve social connectivity in physical communities by(More)
'Virtual publics' are a type of computer mediated discourse space created by using various technologies including email, the USENET, web based bulletin boards, IRC, MUDS, etc. [4]. This paper outlines ongoing field research into the stress zones or boundaries to interactive virtual public discourse produced by information overload. It describes initial(More)