Minecraft is down because of an error in multiplayer from the going to be the 1.3 update that went wrong. Now it is said that the 1.3 update will be august 1st, Also they are trying to fix the multiplayer setting. Cracked Minecraft servers currently are still working after all of this and thats one good thing and everything hat is happening should be fixed in a day or so. Also I forgot to add that is Minecraft will be fine after this, it was just an error parent's don't panic. Please comment if you would like to. Please favorite if it helped you too. :)