Stephen Grasso is one of this countries leading occultists. He's not perhaps the best known, but he is one of the most intelligent and balanced, and certainly one of the more stable I've encountered. He's also co-founder of Liminal Nation, a forum with an ethos that embodies the rational approach I have come to associate with him.
Yes, I probably should just kiss him already.
Point is, he's been writing a series of articles that have been posted over at BangTheBore.org, and you should read them.
Part three is up, but I suggest you start with part one, 'All Cities Have Magic'. If you have any interest in the occult at all, you will not regret it.