Communication between the Game Master and the players is crucial to keeping the game fun. Solicit feedback from your players from time to time and see how they feel about the experience. If they curse, spit, or stab you with a pencil, it means they probably aren’t happy with the direction the game is going. Sadly, there isn’t much you can do about this, unless you want to give them their way. And honestly, what’s the fun in being the GM if you’re just going to let players have their way?
UPDATE: Ah. So THAT’S where the “rocks fall” joke originated!
Philosophy of Moderation
The comments on most sites are a sewer of hate, because we're moderating with the wrong goals in mind.
The Gradient of Plot Holes
Most stories have plot holes. The failure isn't that they exist, it's when you notice them while immersed in the story.
Video Compression Gone Wrong
How does image compression work, and why does it create those ugly spots all over some videos and not others?
The Truth About Piracy
What are publishers doing to fight piracy and why is it all wrong?
Here is a 13 part series where I talk about programming games, programming languages, and programming problems.