Humorous Incidents

The Adventures of "Team Zed" - an Internet classic. You can find them in the Google Archives here, here, and here.

Funny (or just sad, depending...) RPG stories in a science-fantasy setting: (On the off chance that you're in my Gaming Group in Marysville, CA - Don't read these yet, they have spoilers.)

When GMs improvise: The Hummingbird of Death. Setting the bar for Monty Haul.