This paper describes haptic technologies that can be formed into tiny skin-stretching tactile displays, enabling a handheld device to provide a range of responses through the tips of the user's fingers grasping it. This offers an alternative to relaying solely on audio or screen graphics to support interaction, and opens up exciting avenues for overcoming size limitations in mobile devices.

This paper features a creative set of techniques that combine ambient displays and physical artifacts to create novel classroom-based learning activities. Through a set of case studies, the author describes how persistent simulations of scientific phenomena are monitored and manipulated by students to gain a better understanding of earthquakes, planetary motion, and insect ecology.

This paper describes an innovative new method for entering text using a trackball, based on a non-trivial extension of the EdgeWrite method. Targeted at users with motor impairments, the paper provides a theoretical analysis of the method, a controlled laboratory study and a participatory design project with a user with a spinal cord injury, providing an excellent mix of theoretical, experimental and field studies.

This paper connects playing a mobile, multi-player game with helping people more accurately understand the invisible geography of wireless access across their urban landscapes. Studying how people played the game over a week demonstrated how people integrated the game into everyday life, raising designing implications for mobile and pervasive experiences.

This paper shows how an end-user documentation tool based on programming by demonstration was enthusiastically received by both the individuals who used the tool to create documentation and the individuals who used that documentation. The paper shows significant improvements in speed and avoidance of critical errors for users of documentation created with the tool.

This paper presents interviews with families with young adults with cognitive disabilities, illustrating the differences in selection and adoption of technologies between stakeholders and caregivers in the young adult's life. A deeper understanding of the competing criteria in stakeholder reasoning that lead to selection, adoption and accommodation of assistive technologies is offered.

This paper explores the potential relationship between ethnography and more traditional HCI, examining how design can benefit from ethnographic studies beyond simply reacting to a set of "design recommendations". The paper argues that the CHI review criteria conflict with the more analytic tradition associated with ethnography, limiting the potential for such studies to positively influence design.

This paper presents a longitudinal empirical study of a Massively Multiplayer Online Game (MMOG) by analyzing actual usage logs of a game. A more refined understanding of the social nature of these games (more for audience than for collaboration) is articulated, suggesting implications for the design of social interaction in these games.

This paper presents a new cognitive modeling approach that can generate predictions of the strategies users will adopt in order to meet objectives such as speed or accuracy in a task's performance. It therefore offers the prospect of evaluating interfaces in terms of their ability to support such objectives, avoiding the need to specify precise sequences of operation.

This paper develops a method for children to design their own computer game system using tangible interface technology. Their experiences led to the idea of using objects as resources for activities and actions, rather than information.

This paper investigates the impact of delayed visual feedback and of task dynamics on the collaborative performance of workers and helpers in a distributed setting of puzzle solving. Designers of collaborative systems may use the results to consider tradeoffs between latency and complexity in designing solutions to distributed collaborative systems.

This paper describes a series of three controlled experiments that explore on-line learning and the potential benefits of automatic prompting. It shows the importance of a well-structured infrastructure for supporting on-line collaborative learning and offers insights into how students can work together effectively in extended on-line discussions.

The paper introduces a new formative evaluation method, called paratypes, for studying ubicomp systems that are mobile, heavily contextualized, and social. With it, people are surveyed in real-life situations in which they would have actually encountered the proposed new potentially privacy-invading technology, allowing the participants' attitudes about privacy to be collected efficiently and effectively.

This paper describes the design of an innovative set of sculpted plastic shapes as an instrument for describing affective experiences. Their experiences in exploring the shapes' characteristics demonstrate the importance of developing non-verbal, trans-cultural methods for representing user affect.

The authors have conducted a clear and well-designed evaluation of a prototype "privacy policy workbench" application. This research shows how to develop applications that can more effectively support the development of verifiable/auditable privacy policy statements by users who are not privacy specialists.

The paper presents a design for navigating large content collections with small devices by allowing users to define metadata-based queries for browsing. The paper then presents results from an experimental evaluation of the interface, comparing its browsing and searching modes and providing insight about tasks for which the new technique is effective.

This paper presents a clearly written, detailed account of emergency response procedures in fire crews. The observations point out the importance of in-the-moment and post-hoc accountability in this domain, and, in so doing, pose challenging questions for technology designers.

This paper used qualitative and quantitative methods to collect a rich set of data and observations around health monitoring in the home. It shows how an empirically grounded understanding of the challenges in monitoring health activities in the real world can inform the design of tools to support those activities.

The authors have conducted an important experiment that establishes minimum levels of accuracy that will make automatic speech recognition useful for navigating transcriptions of webcasts. This result is particularly timely given the growing availability and use of webcasts in research and education.

The authors describe a family calendar application whose design is based on a careful literature review, interface mock-ups and prototypes. It makes well- grounded contributions to the existing literature on family calendaring, and is a valuable case study in how to develop design guidelines from ethnographic work.

Remote usability evaluation is becoming increasingly commonplace. This paper offers a clear description of remote evaluation techniques with disabled participants, reminding us to be cautious about what can and cannot be claimed from such studies.

This paper presents a user study which shows significant benefits to using an end-user documentation system based on programming by demonstration and guided walkthrough, as opposed to simple word-processing documentation. In addition, the results are of interest to anyone creating programming by demonstration systems, even if they are not used for documentation.

A study was conducted of internet use by people experiencing a particular form of major life event -- a change of residence. Among those who reported high levels of depression after the event, women decreased their communication-related internet use, and men increased their use for entertainment.

This paper contributes to the existing data on comprehensibility of temporal compression algorithms. Based on previous work, the authors follow an exemplary analytic and empirical process and demonstrate that excision techniques are more comprehensible than standard compression techniques.

The paper describes a computer game that encourages players to enter descriptions of online images, by awarding points to the describer whose sentence is the first to guide a seeker to that particular image. The game has the potential to add textual annotations to images on websites, and thus enable the visually impaired to hear the descriptions with the aid of a speech synthesizer.

This work takes the tedious process of collecting common-sense facts for an AI system and transforms it into an internet-based computer game. It taps into the knowledge and mental energy that is available on the internet to help solve the problem. Preliminary evaluation suggests that the game is fun and the resulting facts are accurate.

This paper provides an in-depth look at the use of the ICT broadcast messaging system within a large organization. The paper provides a compelling adoption story supported with interesting descriptions of users' activities and motivations, the costs and benefits of its use, and clear, actionable insights about the design and deployment of such systems.

This paper offers insights into the debate about "design" within the CHI community, delving into what is often considered a "black art" by researchers and engineers. The authors argue that creative design is an intellectually rigorous process with a long respected history and must be better understood and actively incorporated into a multi-disciplinary user-centered design process.

The authors have conducted some cleverly-designed experiments to test the effectiveness of security toolbars and other techniques for countering 'phishing' attacks. Users were found to rely more on web content than on toolbar warnings to judge authenticity, and spoofing attacks succeeded in more than 30 percent of cases, leading the authors to question the techniques' effectiveness and suggest a number of useful guidelines for preventing attacks.