The word 'occult' is derived from a Latin word ('occultus') which means 'hidden, dark, secret'. Occult practices should be avoided because they are forbidden by God. There exists the very real danger that these practices may bring a person into contact with 'spirits' that are demonic in nature.
"When you come into the land that the LORD your God is giving you, you shall not learn to follow the abominable practices of those nations. There shall not be found among you anyone who burns his son or his daughter as an offering,anyone who practices divination or tells fortunes or interprets omens, or a sorcerer or a charmer or a medium or a necromancer or one who inquires of the dead, for whoever does these things is an abomination to the LORD. And because of these abominations the LORD your God is driving them out before you. You shall be blameless before the LORD your God, for these nations, which you are about to dispossess, listen to fortune-tellers and to diviners. But as for you, the LORD your God has not allowed you to do this.
Deuteronomy 18:9-14 (ESV)
THE OCCULT - A DESCRIPTION
... from our friends at TAKE A CLOSER LOOK. This is a very good introductory article by Adrian van Leen.
ALL ABOUT THE OCCULT includes an examination of topics such as: Channeling, Occult, Palmistry, Satan Worship, Voodoo Religion, Celestine Prophecy, Crystal Healing, Ouija Board, Out Of Body Experience, Tarot Cards and Wicca Spells,
4TRUTH has an overview of the occult as well as a section on 'occultic games'.
CHRISTIAN ANSWERS FOR THE NEW AGE has a large Topic and Article section
CHRISTIAN RESEARCH INSTITUTE has been involved in researching for nearly 50 years.
Satanism: The World of the Occult by Russ Wise
... from ATRI JOURNAL ONLINE is an absolute must! Search here with great results and excellent articles.
SALTSHAKERS has a page of resources worth checking out.
Article by CGM called 'Wicca - White Witchcraft'