ABSTRACT
Two major types of augmented reality seem most likely to see academic use in the coming five years, markerless and marked. Markerless augmented reality uses the location determined by a cell phone to serve as a basis for adding local information to the camera view. Marked augmented reality uses a two-dimensional barcode to connect a cell phone or personal computer to information, usually on a web site. Both approaches are already being used in museums and college libraries. Marked augmented reality is especially powerful because it makes physical objects clickable, such as a web page. Augmented reality creates some exciting new opportunities for libraries.
