http://en.wikipedia.org/wiki/Lilith
Some excerpts from that link —
Two organizations that use initiations and magic associated with Lilith are the Ordo Antichristianus Illuminati and the Order of Phosphorus.
Lilith appears as a succuba in Aleister Crowley’s De Arte Magica.
Lilith was also one of the middle names of Crowleys first child, Nuit Ma Ahathoor Hecate Sappho Jezebel Lilith Crowley (b. 1904, d.1906), and Lilith is sometimes identified with Babalon in Thelemic writings.
A Chaos Magical rite, based on an earlier German rite,[118] offers a ceremonial Invocation of Lilith:[119]
In modern Luciferianism, Lilith is considered a consort of Lucifer and is identified with the figure of Babalon. She is said to come from the mud and dust, and is known as the Queen of the Succubi.
When she and Lucifer mate, they form an androgynous being called “Baphomet” or the “Goat of Mendes,” also known in Luciferianism as the “God of Witches.”[122][not in citation given]
Writings by Michael W. Ford, including The Foundations of the Luciferian Path, contend that Lilith forms a part of the “Luciferian Trinity” consisting of herself, Samael and Cain.
Likewise, Lilith is said to have been Cain’s actual mother, as opposed to Eve. Lilith here is seen as a goddess of witches, the dark feminine principle, and is also known as the goddess Hecate.[123]
In some contemporary concepts, Lilith is viewed as the embodiment of the Goddess, a designation that is thought to be shared with what these faiths believe to be her counterparts: Inanna, Ishtar, Asherah, Anath and Isis.[127]
According to one view, Lilith was originally a Sumerian, Babylonian, or Hebrew mother goddess of childbirth, children, women, and sexuality[128][129][130] who later became demonized due to the rise of patriarchy.[131]
Other modern views hold that Lilith is a dark moon goddess on par with the Hindu Kali.[132]