Discusses dreams as a symptom of post-traumatic stress disorder. From Traumatology, a publication of the Green Cross Foundation.

General description of types of dream disorders and medications that may cause them. From the American Academy of Family Physicians.

Collection of writings on the value of dreams, experiential dream groups and parapsychology.

A paper on the subject, including why you might want to experience them, and how to optimize your chances of their occurrence.

Jungian approach.

Dream analysis, in psychoanalysis, provides the possibility to decipher the mystery of neurotic disorders, specifically hysteria, and secondly, it opens the road towards unconscious.

An article of some length on lucid dreaming by Susan Blackmore, PhD.

An essay discussing the apparent meaning in dreams by Cyd C. Ropp at Janus Head