A good diagram of a prosthetic limb and detail about how the prosthetic limb transmits sensation to the brain.
A visual diagram depicting central and peripheral changes when loosing a limb.
A detailed picture describing Merzenich's monkey experiment.
Dr. Ramachandran, a prominent researcher of phantom limbs.
Silas Weir Mitchell - created the term "phantom limb"
Phantom Limb Mirror Box Link to more information: http://www.23nlpeople.com/brain/Phantom_limb_pain.php
Mirror Box and Phantom Limb Pain video
Video describing brain plasticity and phantom limbs.