Gnome Stew has an interesting article on the probabilities of various polyhedral dice.
Rules Design
A Treatise On Dice Rolling Mechanics
RPG Design has published a Treatise On Dice Rolling Mechanics. It’s focused on RPG mechanics, but since we all play with dice …
Dice Probabilities Article
I don’t know of a miniatures wargamer who hasn’t tried to write his own set of rules. And unless your rules are extraordinarly simple, that means thinking about dice probabilities. Here’s an article on die probabilities with d6s, with a special focus on DBA and Warmaster.
How To Print On Blank Playing Cards
Here’s an interesting bit of advice for printing directly on blank playing cards. It would be useful for better-looking prototype games.