6/6/06 is not special at all. Anyone who thinks so needs to do a lot of learning.
Here's why.
In the Book of Revelations, the author John uses something called Gematria to calculate the number of the beast - different numbers represent different Hebrew characters. 600, 60, and 6 all hold different values. The name, incidentally, is Nero Caesar - which is another reason why 6/6/06 isn't Satanic. The beast in Revelations is not Satan, the antichrist, or anything else you think it is. The beast is a Roman emperor who persecuted Christians. Ooooh, scary.
There are two different spellings of "Nero Caesar" in Hebrew, one derived from Greek and the other from Latin. In Greek, the letter "n" is placed on the end of a word that would otherwise end in a vowel - "Nero" in this case. This spelling equates to 666. However, an alternate spelling is derived from Latin, and equates Gematrially to 616. Either way, three sixes separated by delimiting characters are NOT EVIL, NOT SPECIAL, and NOT SIGNIFICANT IN ANY WAY AT ALL.
Even if it DID hold Satanic significance, the only people talking about it are boorish morons who don't understand Satanism at all. Satan in Christianity and Satan in Satanism are two entirely different concept, you brick-headed oafs. Do your own damn research.