I too once read that website that you gave DAVID and go even further to other sites. I've been thiking a lot about the NDE thing,
1. It is definitely not psychological in nature as the flat brain wave signifies no activitiy at the brain. So it can't be hallucinations, vivid imaginations or dreams. In fact, we can easily take our EEG and tap it to someone's head while he's dreaming, hallucinating or having vivid imaginations and compare the resulting EEG waves to the dead guy (which most definetely won't be the same as the dead guy's wave is flat right?
)
2. The experience has some similarities accross the globe, don't that at least get u thinking "Geez... this thing could actually be right". The possibilities of global conspiracy, bunch of people who purposely confess the same experience for some ulterior motives is very unlikely.
3. Sometimes the experience involves OBE (out of body experience), and during OBE this person can observe stuff that actually impossible at the point of view of the body and once he's revived, he can actually described this stuff at great accuracy, for example the clothing of the wife outside the resucitation room, the process of resucitation in details, etc.
4. The fact that a lot of experienced doctors (i.e. cardiologist, neurologist) observe the NDE of his patient first hand and actually believed it. I mean, if it's something that can be explained medically, this guys are the expert right? We trust this guyz to open our very private skull and take a peek at our brain (neurologist).
So is that means that whatever these guys see out there is the real deal? Is this a irrefutable proof of life after death? of consciousness outside the brain? of heaven and hell?
