Wikileaks, though technically not a wiki, provides an easy means to disseminate information that some find it desirable to share against the wishes of those who find it desirable to keep secret. Aside from the morality of the leaking itself, such a service provides a look into the activities of...
Aim for experienced enemies first with your artillery to soften them up.
Charge an inexperienced unit with your cavalry and you might make them flee.
Send your general to your most immediately effective unit to boost its morale.