SRS-X - Scottish Radiological Society Educational Resource, featuring X-Ray cases, tutorials, and interactive multiple choice papers. - http://www.radiology.co.uk/srs-x/
Basic Chest X-Ray Review - Description and interpretation of this standardised diagnostic procedure. - http://rad.usuhs.mil/rad/chest_review/
X-Ray Diagnostic Database - Teaching case database. Rich cross-links allow for discussion of appearance or pathology, by reference to other cases and appearances. - http://myweb.lsbu.ac.uk/~dirt/museum/cmh1.html
Thoracic Imaging - The art and science of thoracic imaging. Recources, practice, education and other topics on Chest X-Ray. - http://www.chestx-ray.com/
X-Ray Files - Pictures and corresponding diagnoses provided by the NetMedicine Radiology Library. - http://www.netmedicine.com/xray/xr.htm
Wikipedia - Summary of history and modern day use of X-ray technology. - http://en.wikipedia.org/wiki/X-ray