All hospitals that have a PACS have experienced its ability to improve the quality of clinico-radiological con-ferences as well as radiological training. The archive is no longer the deposit of our past exams that we keep for legal reasons, but the active repository of our operational knowledge that is updated at every encounter with the pathologies that we correctly diag-nose, following a scheme that closely resembles the back-propagation algorithms used in neural networks. The ready availability of image and clinical data facilitates the construction of multimedia teaching file and prepares the physicians to use the powerful e-learning resources on Internet. However, there is growing concern that a substantial proportion of such information that is free from rigorous editorial control might be inaccurate, erroneous, misleading, and thereby causing potential danger. One of the initiatives that implemented a formal anonymous peer-review process to assure the scientific and educational quality of radiological material published on the Internet is EURORAD, the on-line educational database of the European Association of Radiology (ISSN 1563-4086) that can be accessed free of charge at the address: www.eurorad.org. Presently, EURORAD contains a large variety of teaching files (published in English, French, and Spanish) en-compassing all radiological subspecialties and aims to stimulate the professional use of the World Wide Web, by providing sound and up-to-date information that can assist radiological practice and education. EURORAD exploits the powerful features of the Internet by combining co-operative work, peer review, and universal ac-cess.