Adaptive hypermedia is an area of research at the crossroads of hypermedia and adaptive systems.
AH systems can adapt hypermedia content to a user's knowledge and goals, or can suggest relevant hyperlinks to follow. AH systems are now used in several application areas where the hyperspace is reasonably large and where users of a hypermedia application may have significantly different goals, knowledge and backgrounds. Examples are educational hypermedia, on-line help, and information retrieval systems. This talk will provide a brief survey of adaptive hypermedia research. It will present techniques that have been evaluated in an experimental study and shown to be effective.