• Problem: given a hypermedia application with many sub-systems, how do we give easy access to each sub-system even if they are unrelated?
• Motivation
• Forces
    – Many entry points for users to explore and we want them to be easily available
    – Links to those points will not be usually derived from the conceptual and navigational schema
• Solution
    – Define a set of landmarks and make them accessible from every node in the network
    – Make the interface of links to a landmark look uniform
• Know uses