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We present two studies of online ephemerality and anonymity based on the popular discussion board /b/ at 4chan.org: a website with over 7 million users that plays an influential role in Internet culture. Although researchers and practitioners often assume that user identity and data permanence are central tools in the design of online communities, we(More)
In this paper, we describe backchan.nl, a web based backchannel system that focuses on managing questions for presenters by allowing audience members propose and vote on other people's questions. Top rated questions are projected in the presentation space so audience members, moderators, and panelists can see them. We discuss the results of deploying this(More)
Virtual worlds are typically designed to recreate the familiar physical world, both in the design of the spaces and the ways that people interact within them. In this paper we describe an alternate approach that uses the computational capabilities unique to the virtual world to augment social interaction and personal experience. We propose a specific design(More)
We present a tablet-based system to collaboratively track discussion topics and ideas in a seminar-style discussion classroom. Each student uses his or her own tablet to share text ideas in a synchronized, visual environment. The system is designed to promote diverse participation and increase engagement. Our findings are based on observations of twelve(More)
Looks at how MIT Media Lab's Responsive Environments Group is exploring ways to bridge networked electronic sensors and human perception through "cross reality" implementations that render and manifest phenomena between real world and virtual environments via densely embedded sensor and actuator networks.
Recent work by our group at Motorola Labs has focused on applying the principles of ambient interfaces to the domain of mobile communications. Our methods incorporate both formative ethnographic studies and field evaluation of prototypes to investigate how people make use of ambient information in the course of everyday communication. Our goal is to enable(More)
We describe Tree Flow, a new technique for visualizing changes to the structure of a hierarchy, and discuss a prototype tool that implements this method. Roughly speaking, Tree Flow works by creating a timeline in which the x-axis corresponds to date information, and the y-axis corresponds to the depth-first ordering of data in a time-varying tree(More)