Mobile users have many needs to re-find information across a variety of computing devices, locations, and situations. My research explores two areas to support mobile information re-finding. First, I am investigating how users re-find information first found on the web: how people approach re-finding, what information they recall when trying to re-find, and how they converse about re-finding. Second, I am examining how shared context can be established and utilized between a user and a computer system to improve future re-finding interactions. In this paper, I present two efforts to explore these areas. I briefly describe a prototype system to support mobile information re-finding through a telephone-based voice interface, and then present preliminary results from a study of how people converse when engaging in collaborative information refinding tasks with another person. The results of this study suggest that context plays an important role in re-finding.
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