Object Oriented Games - http://www-cs-students.stanford.edu/~amitp/Articles/ObjectOrientedGames.html Essay by David Librik on the design of a new object-oriented system for adventure games
No Place Like Home - http://www.firthworks.com/roger/cloak/index.html Works of interactive fiction created using Inform and an exercise in implementing the same game in different systems.
XYZZYnews: The Art of the Puzzle - http://www.xyzzynews.com/xyzzy.14g.html Three accomplished IF authors discuss the art of creating puzzles for a game.
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