Radiopaedia

Online collaborative radiology resource

Radiopaedia is an online, collaborative radiology resource. It includes one of the web's largest repository of radiology cases and articles. Users can upload their own cases and images and they can be browsed by the public. In addition, you can view cases in quiz mode which is useful for medical students. In addition to their website, Radiopaedia also offers a free iOS app with case packs available for download.