Inside Radiology
Provide patients, carers, potential users of radiology and referrers (general practitioners, specialists and other health professionals) with accurate, up to date information about radiology procedures and interventions that is easy to use and understand.
http://www.insideradiology.com.au

X-ray Risk
Dedicated to improving the understanding of radiation risks from medical imaging. Calculate your dose and estimate cancer risk from studies including CT scans, x-rays, nuclear scans and interventional procedures.
http://www.xrayrisk.com