An early hypertext authoring tool that has been in development since the mid 1980's. Whereas Hypercard concentrated on multi-media (or hypermedia), Storyspace development was concerned primarilly with text.
Used chiefly in the early days by fiction writers and poets, Storyspace still has a large following of users and writers. Its publisher, Eastgate Systems, has a large catalog of hypertext fiction and poetry, and there is a large body of academic writing about the nature and possibilities of non-linear narrative.
The Storyspace developers were heavily influenced by the works of Ted Nelson and Jorge Luis Borges.