There is plenty of literature on the subject of the paranormal, look up books such as Irreducible Mind, The Afterlife Experiments, Entangled Minds...there are many more, and are serious and scientific and present evidence for their claims, their evidence is not anecdotal either. For example here is an excerpt about NDE's from the book Irreducible Mind.
http://michaelprescott.typepad.com/m...cible_min.html
http://www.deanradin.com/NewWeb/EMindex.html
If you want me to post more i shall.