Here there is naught but dust and eternity. Return in the fullness of time.
In the meantime, here is a post originally from 1996 that I pulled off of the GURPS usenet board (rec.games.frp.gurps) way back in the day and formatted into a nicely legible (I hope) Word document. The original post was by Hamilton Meyer, and the intro explains the rest of how it all works. It's a really nice little guide (and I hope no one minds me spreading it around.. I actually assumed it would have been proliferated around the net ad nauseum but couldn't find it anywhere): the Deadly Sins of GMing Summarized