M.A.C. - Mystery Adventure Creator - A tool to write classic styled illustrated adventure games. Available in English and Italian. - http://www.paololucchesi.it/mac/eng/
List of IF Editors - Text editors and IDEs which are helpful to use when creating IF. - http://www.firthworks.com/roger/editors/
Crash: Adventure writing utilities - Article on GAC and PAW from Crash magazine, March 1988. - http://www.crashonline.org.uk/50/advent.htm
Hugo - Multimedia interactive fiction engine. - http://www.generalcoffee.com/hugo.html
Archetype - Short description, some sample code and possibility to download the package. For DOS. - http://www.ifarchive.org/indexes/if-archiveXprogrammingXarchetype.html
Game Wizard (G-Wiz) - A tool for designing and playing text adventure and role-playing games. G-Wiz games can make use of text, sound, graphics, video, and audio. - http://soft-wiz.bizhosting.com/site/g-wiz.htm
Breathing life into fantasy - A feature on adventure aids from Sinclair User, December 1984. - http://www.sincuser.f9.co.uk/033/advent.htm