Who needs VOIP? Although you don't need detailed maps for Maid, Maptool is a great tool that I use to run other games. Text chat, plus lots of graphical displays. It often helps to have visual representations of characters, events, things, ideas, and dust accumulations. (KYAAAAA!!!)
"In a little while you will be alone in shoreless space, to wander its limitless solitudes without friend or comrade forever - for you will remain a thought, the only existent thought, and by your nature inextinguishable, indestructible. [...T]here is no God, no universe, no human race, no earthly life, no heaven, no hell. It is all a dream - a grotesque and foolish dream. Nothing exists but you. And you are but a thought - a vagrant thought, a useless thought, a homeless thought, wandering forlorn among the empty eternities!"
-The Mysterious Stranger, Mark Twain
"Welcome to reality. The paradise of repressed dreams."
-The Psychiatric Clinic for Abused Cuddly Toys