Atlas of Diagnostic Laparoscopy of Liver Diseases [T Takahashi] - Niigata Univ. (JP)

Atlas of Gastrointestinal Endoscopy [Freytag and Kutscha] - (DE)

The Atlas of Gastrointestinal Endoscopy [Martin and Lyons]

 

Clinical Abdomen Images [C Goldberg] - UCSD (US)

Collection of Endoscopy Photos and Videos a-Three Rivers Endoscopy C. (US)

El Salvador Atlas of Gastointestinal VideoEndoscopy [JA Murra-Saca]

Feldman's GastroAtlas Online [free registration required]

The Gastrolab Endoscopy Archives - pictures of diseases and lesions of the gastrointestinal tract.

Image Library and Endoscopy Picture Archive at Gastrolab [H Björknäs] - (FI)

Images in Gastroenterology from Nucleus Communications, Inc.

 

Two (endoscopic) Atlases , and some Gastrointestinal Endosonographic Videos - Digestive Disease Center, MUSC (US)