Abstract: A hypertext network and a method for displaying user selectable information modules in a hypertext network are provided for use in an interactive data processing system. The hypertext network includes a plurality of user selectable information modules. At least some of the modules include a link reference phrase to an other user selectable target module. Responsive to a user selection input, a link reference phrase to an other user selectable target module is identified in a selected information module. The availability of the other user selectable target module corresponding to the identified link reference phrase is determined and the identified reference phrase link is selectively activated or deactivated responsive to the determined availability of other user selectable target module. The identified reference phrase link can be selectively activated or deactivated based upon user class or user authority.