Dr. David B. Adams - Somatoform Disorders: Psychological.com offers an overview of this disorder.
Family Practice Notebook: Somatoform Disorder: Background information, pathophysiology, subclass list, and associated syndromes.
Pseudoseizures or Somatoform Spells, Hysteroepilepsy or Somatoform: Examination of a new nomenclature which resembles epileptic seizures but which are in reality psychogenically induced.
Somatoform Disorder and Implicit Memory Bias (Ott et al, 2000): Summary of a poster presentation examining experiments comparing two sets of individuals, one set with the disorder and the second being a healthy control group.
Somatoform Disorder: What It Is and How to Cope: Familydoctor.org offers an overview, describes causes, symptoms and possible treaments.
Somatoform Disorders: Psyweb.com offers a general definition of this disorder. Includes details on the various types.
Somatoform Disorders: Presentation by Paul Young from Houghton College includes an overview, description of the types and etiology of the ailment.
The Merck Manual - Sec. 15, Ch. 186: Offers a layman's descritption of the condition.