Horos - A free, open source 64-bit DICOM medical image viewer
Img.vision - Image hosting & video hosting for eCommerce sellers
MicroDicom - DICOM viewer. MicroDicom is a free DICOM viewer. Export to the most common picture formats, movie, clipboard. It is equipped with most common tools for manipulation of DICOM images.
BeeIMG - BeeIMG is a simple, fast, easy image sharing solution created to fill up your image sharing needs.
Materialise Mimics - Materialise Mimics is software specially developed by Materialise for medical image processing.
ImageVenue - ImageVenue is a great online hosting service that allows uploading pictures for showing creative works with a simple-to-use technique.