Jane McGonigal is giving away Werewolf tricks on her blog:
Avi Bryant and I worked out on paper an Ultimate Optimal Villager Strategy for a Small Village playing “no reveal” (12 or fewer players, with both a seer and a healer). This is basically a PERFECT strategy that would work ruthlessly well to detect and lynch all of the Werewolves every single game, in almost any circumstance. We did all the math, we ran all the scenarios, and then we tested it in a bunch of games with lots of different players. And in ~20 games, the villagers won every time… (avantgame.blogspot.com)