VoxelMap Mod 1 8, 1 7 10, 1 7 2
VoxelMap is the latest iteration of Zan's minimap, a rather famous minimap mod created by Zan. With the new "Old North" toggle (bring up the menu with M) you can choose to have the map display North to match how the sun moves in Minecraft Final (default), or to match how the sun used to move back in Beta (if you have old maps, and don't like how everything turned 90 degrees).
Download VoxelMap Mod 1.8, 1.7.10, 1.7.2