Cults, charismania, Pentecostalism and marketing schemes are all related in that they are based on emotional manipulation.

Rick Ross, an expert on cults and destructive churches has a sub-forum dedicated to exposing commercial schemes. See here:

forum.rickross.com/viewfo...f9a797cd9e

Most of these schemes have a common pattern, and the pattern is very similar to the recruiting techniques of Pentecostals and charismatics – you know, hide what the real deal is until the person is emotionally sucked in and invested in the system. Then, the person is less willing to bail out of the scam for fear of losing investment and simple pride at being fooled. Similar things with a lot of Pentecostalism.
Lutherius
"Rescuing Pentecostals One Soul At A Time"

http://p212.ezboard.com/bexpentecostalforums
http://ex-pentecostal.blogspot.com/
http://groups.yahoo.com/group/Pentecostal_Watchdog_Society/