Attunement Chart

This is a Blizzard Chart of the required instances and their nomral or heroic modes required to advance to the next lvl (Not including the new Black Temple)

http://www.worldofwarcraft.com/bcattunement/

This is a chart showing the Attunement for Black Temple

http://www.worldofwarcraft.com/btattunement/

Love to see Illdari Invasion, all major horde and alliance citys are under attack for a duration of 6 hours and you must defend them! lol