MedlinePlus Medical Encyclopedia: Frozen Shoulder 
Presents the causes, symptoms, complications, and treatment for it.
http://www.nlm.nih.gov/medlineplus/ency/article/000455.htmAdhesive Capsulitis: A Sticky Issue
From American Family Physician on this problematic condition with illustrations and photographs.
http://www.aafp.org/afp/990401ap/1843.html
Frozen Shoulder (Adhesive Capsulitis)
Discusses the phases, associated diseases, and treatment. By the Center for Orthopaedics and Sports Medicine.
http://www.arthroscopy.com/sp04002.htm
eMedicine - Adhesive Capsulitis
Provides an introduction, clinical aspects, differentials, treatment, and medication.
http://www.emedicine.com/pmr/topic8.htm
MedicineNet: Frozen Shoulder (Adhesive Capsulitis)
Describes what it is, how it's diagnosed, the causes, conditions it mimics, and treatment.
http://www.medicinenet.com/frozen_shoulder/article.htm
Mayo Clinic - Frozen Shoulder
Find the causes of this condition, symptoms, risk factors, and treatment, including complimentary therapies.
http://www.mayoclinic.com/health/frozen-shoulder/DS00416
Frozen Shoulder
Discusses this condition and its relationship to diabetes. From the ADA.
http://www.diabetes.org/type-2-diabetes/frozen-shoulder.jsp
The Physician and Sportsmedicine: Exercising the Frozen Shoulder
Presents illustrations and details on pain management.
http://www.physsportsmed.com/issues/2000/09_00/pa_sandor.htm
