Editing Hypertext (section)

==Implementations==
Besides the already mentioned [[Project Xanadu]], [[Hypertext Editing System]], [[NLS (computer system)|NLS]], [[HyperCard]], and World Wide Web, there are other noteworthy early implementations of hypertext, with different feature sets:
[[Image:HypertextEditingSystemConsoleBrownUniv1969.jpg|thumb|right|190px|Hypertext Editing System (HES) [[IBM 2250]] Display console&nbsp;– Brown University 1969]]
* [[FRESS]] – a 1970s multi-user successor to the [[Hypertext Editing System]].
* [[ZOG (hypertext)|ZOG]] – a 1970s hypertext system developed at [[Carnegie Mellon University]].
* [[Electronic Document System]] – an early 1980s text and graphic editor for interactive hypertexts such as equipment repair manuals and computer-aided instruction.
* [[Information Presentation Facility]] – used to display online help in [[IBM]] operating systems.
* [[Intermedia (hypertext)|Intermedia]] – a mid-1980s program for group web-authoring and information sharing.
* [[The Interactive Encyclopedia System|HyperTies]] - a mid-1980s program commercially applied to hundreds of projects, including July 1988 [[Communications of the ACM]] and Hypertext Hands-On! book.
* [[Texinfo]] – the [[GNU]] help system.
* [[KMS (hypertext)|KMS]] – a 1980s successor to [[ZOG (hypertext)|ZOG]] developed as a commercial product.
* [[NoteCards]] – a mid-1980s system from Xerox PARC using a notecard metaphor and graphical browser for idea processing
* [[Storyspace]] – a mid-1980s program for hypertext narrative.
* [[Symbolics Document Examiner|Document Examiner]] - an hypertext system developed in 1985 at [[Symbolics]] for their Genera operating system.
* Adobe's [[Portable Document Format]] – a widely used publication format for electronic documents.
* [[Amigaguide]] – released on the Commodore [[Amiga]] [[Workbench (AmigaOS)|Workbench]] 1990.
* [[Windows Help]] – released with Windows 3.0 in 1990.
* [[Wiki]]s – aim to compensate for the lack of integrated editors in most Web browsers. Various [[wiki software]] have slightly different conventions for formatting, usually simpler than [[HTML]].
* [[PaperKiller]] – a document editor specifically designed for hypertext. Started in 1996 as [[IPer]] (educational project for [[ED-Media]] 1997).
* [[XML]] with the [[XLink]] extension – a newer hypertext markup language that extends and expands capabilities introduced by [[HTML]].