QUOTE(Arnkel @ Jan 12 2007, 01:02 PM)
Modern Satanism(Think LaVey and Manson) is just Atheism with a philosophy. Most prefer the color black because of the conotation most cultures have for it. If the Jewish/christian/muslim ideology wasn't the dominant religion on the planet, they'd be something else(perhaps Saturnites if roman gods had taken over, Lokeans if the Norse had[if Snorri is to be believed], and maybe Setists if the Egyptian pantheon reigned supreme). Theistic Satanism(aka Devil Worship) is a whole other animal and your answer will vary by tradition.
Theistic Satanists usually have a similar philosophy to that of Laveyists, but the deity they usually worship is also an actual deity, ie. Lucifer, Azazel, Set, Pan, etc.