Many conspiracy theorists believe that the Bavarian Illuminati, disbanded in 1785 by the Bavarian government, merely reformed again later and continue to the current day. The only problem is that no one can really agree just what the Illuminati are/were up to. Some say they're communists. Others say they're anarcho-capitalists. Still others believe they're pure anarchists. Or, for that matter, Satanists. Many others believe that the Illuminati are the true heart of Freemasonry.
Maybe this proves that they are really good at what they do, or perhaps it is proof we are all insane.
The famed Illuminati slogan is "Ewige Blumenkraft und Ewige Schlangenkraft".
After Jet-Poop's super linkage, I frankly don't know what else would be worth linking to.