General:

American Orthopaedic Foot & Ankle Society (http://www.aofas.org)
Patient Education & Resources
Ailments and Conditions

Diabetes:

National Diabetes Information Clearinghouse (NDIC) (http://diabetes.niddk.nih.gov)
Diabetic Neuropathy
Foot Ulcers

American Diabetes Association (http://www.diabetes.org)

Footwear Supplies:

FootSmart  (http://www.footsmart.com)
Bunions (Bunion Regulator / Silicon Gel Toe Spreader
Toe Straighteners
Ryka Shoes

(For information only.  No endorsement implied.)