The authors describe a prototype augmented reality (AR) system that allowed them to experiment with interfaces to a 3-dimensional spatialized information space based on the World Wide Web (WWW). The authors call such an information space the Real-World Wide Web (RWWW), because it merges the WWW with the physical world. They present the assumptions they make about the characteristics of such a system, discuss the implications of those assumptions for AR interfaces, and describe their initial experiences creating a prototype RWWW browser.