A discipline within architecture, deals with signage, maps, orientation ... but is a lot more than just that. Originally from architecture as in the BuiltEnvironment, it's also now relevant for the OnlineEnvironment

Some links to get started

• [Enabling Extremely Rapid Navigation in Your Web or Document]
• [Navigation and Wayfinding in Virtual Reality: Finding Proper Tools and Cues to Enhance Navigation Awareness]
• [Usability Studies And Designing Navigational Aids For The World Wide Web]
• [Wayfinding: Human Perceptions & Orientation; in the Built Environment]
• [Wayfinding in Large-Scale Virtual Worlds]
• [Wayfinding Strategies and Behaviors in Large Virtual Worlds]