Voyle Glover, Editor of Brevia.com has a very good article titled "How to Tell if your Church is Cultic". The principles he discusses can be applied to any "Christian" ministry. I wish I would have had access to this type of information 25 years ago. The big question is, would I have been able - and willing - to apply the information to the churches and organizations in which I found myself?
Hindsight is 20/20. Here is the direct link to the article.