The active badge location system
ACM Transactions on Information Systems (TOIS)
Toward an ecology of hypertext annotation
Proceedings of the ninth ACM conference on Hypertext and hypermedia : links, objects, time and space---structure in hypermedia systems: links, objects, time and space---structure in hypermedia systems
Augmenting organizational memory: a field study of answer garden
ACM Transactions on Information Systems (TOIS)
GeoNotes: Social and Navigational Aspects of Location-Based Information Systems
UbiComp '01 Proceedings of the 3rd international conference on Ubiquitous Computing
Digital graffiti: public annotation of multimedia content
CHI '04 Extended Abstracts on Human Factors in Computing Systems
Exploring the relationship between personal and public annotations
Proceedings of the 4th ACM/IEEE-CS joint conference on Digital libraries
CSCW '04 Proceedings of the 2004 ACM conference on Computer supported cooperative work
Why we tag: motivations for annotation in mobile and online media
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Capturing, sharing, and using local place information
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Mapmail: restructuring an email client for use in distributed teams
CHI '07 Extended Abstracts on Human Factors in Computing Systems
From awareness to repartee: sharing location within social groups
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
CHI '08 Extended Abstracts on Human Factors in Computing Systems
The computational geowiki: what, why, and how
Proceedings of the 2008 ACM conference on Computer supported cooperative work
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Advances in location-sensing technology, coupled with an increasingly pervasive wireless Internet, have made it possible (and increasingly easy) to access and share information with context of one's geospatial location. We conducted a four-phase study, with 27 students, to explore the practices surrounding the creation, interpretation and sharing of map annotations in specific social contexts. We found that annotation authors consider multiple factors when deciding how to annotate maps, including the perceived utility to the audience and how their contributions will reflect on the image they project to others. Consumers of annotations value the novelty of information, but must be convinced of the author's credibility. In this paper we describe our study, present the results, and discuss implications for the design of software for sharing map annotations.