Below are some informational links on common shoulder issues
(from the American Academy of Orthopaedic Surgeons website):

Arthritis of the Shoulder

Broken Collarbone

Dislocated Shoulder

Frozen Shoulder

Rotator Cuff Repair - Surgery versus Rehabilitation

Rotator Cuff Tears

Rupture of the Biceps Tendon

Shoulder Impingement

Shoulder Joint Replacement

Shoulder Joint Tear (Glenoid Labrum Tear)

Shoulder Separation

Shoulder Surgery

Shoulder Surgery Exercise Guide