Tools for the aspiring interactive fiction author and articles on game design, along with some practical how-to's.
feelies.org
The folks behind feelies.org will help create and distribute
feelies for your game.
Thoughts on the art and craft of adventure game design. The articles cover design issues, elements of adventures such as puzzles, and analyses of successful games.
Similar to the IF Theory section, except games in general, and not just adventure games, are discussed.
Nuts and bolts articles for people who are planning on writing interactive fiction. Here's where you'll find articles on choosing a text adventure language and finding beta-testers.