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As global positioning, wireless communication, and mobile display technologies continue to advance, our notion of place will change. Information objects—first geocoded signs and later animated special effects—will begin to populate real physical space on what we call WorldBoard channels. WorldBoard is a proposed global infrastructure to associate information with places and ultimately to provide people with enhanced information perception services. This paper explores the notion of a WorldBoard from four perspectives: historical background, technical feasibility, potential applications, and social implications. Recent developments, ranging from lower-cost Global Positioning System (GPS)-enabled car navigation systems to Casio Electronics' first-of-a-kind GPS-enabled wristwatch, foreshadow increased availability of location-aware information services and products. While significant technical, application development, and social challenges remain before a complete WorldBoard infrastructure can be made broadly, uniformly, and cost-effectively available, some feasible first steps toward this important goal are recommended. Finally, a notion like WorldBoard offers an opportunity to reflect on how technological possibilities unfold.
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