The Zergling Rush
4 pool: Spread out all 4 drones onto different mineral patches, preferably the closest ones to the hatchery. Send your overlord out to scout out the enemies postion. Once you hit 150 minerals start up a spawning pool. Then, when you have enough minerals hatch another drone. After the spawning pool is done hatch 6 zerglings or 3 eggs of zerglings. Send the zerglings to attack! I don't recommend this strategy at all. If this rush gets stopped you usually lose the game.
