References Dennis Jerz: Somewhere Nearby is Colossal Cave http://www.digitalhumanities.org/dhq/vol/001/2/000009.html Stephen Granade: A Brief History of Interactive Fiction http://www.brasslantern.org/community/history/timeline-c.html Graham Nelson: Natural Language, Semantic Analysis and Interactive Fiction http://www.inform7.com/learn/documents/WhitePaper.pdf The Interactive Fiction Wiki http://ifwiki.org/ Andrew Plotkin: ongoing and completely unorganized notes on rule-based programming (includes this presentation) http://www.eblong.com/zarf/rule-language.html