1. A system for creating a hyperlink together with an associated semantic link between a source entity and a target entity, said source entity including descriptive text, the system comprising: means for selecting text within the source entity; means for selecting said target entity; means for selecting a type of semantic link; means for creating a hyperlink between said selected text and said target entity; and means for creating a semantic link of said type between said source entity and said target entity, including means for including in said hyperlink a reference to said semantic link.