The guys over at Awesome Dice Blog have done a brief history of dice, from the ancient world to modern day, including the cool graphic timeline you see below. You can see a more legible version of the timeline and get more information about dice history at the actual post.
You can learn to write good adventures and The Adventure Creation Handbook will show you how.
GMs–what’s the most important part of your game? It’s your players. Without your players, you don’t have a game. It’s hard to know how to deal with difficult players. But you don’t have to go it alone. The GM’s Field Guide to Players can help.
