Of greater interest here are his normal links which served to connect nodes comprising the main flow of information in a work. These normal links are largely rhetorical ones and are used to connect nodes on the basis of argument structure or discourse. Organizational links are used to describe the surface structure of documents and comprise elements of the syntactic macro-structure which organizes the presentation of the information. Examples of organizational links range from tables of contents to lower level directional cues such as previous or next page. The second general link type is content-based and deals more directly with specific relationships between nodes within a text.
Semantic links describe the relationship or association between words or concepts.
Association links are the most common of the three classes, and are well suited to illustrate the relational aspect of link usage. Much more common are proposition-proposition links which describe relationships between nodes containing more complex content. The goal of the link types employed is to provide a structured means of indicating the relationship between nodes that allows users to orient themselves on a local, associative level rather than relying on an explicit hierarchy. We began by asking the question of what latent capacities exist in hypertext links that might allow them to be better utilized. It has been suggested here that the functional relationship implied in the linking of two nodes of information offers one possible solution.