Starting from a short excursus on the new chances of research opened by Information Technology in the health field, and on the informational needs of the physicians, Battisti and Esposito draw their attention on the use of Information Technology between european doctors. Their study, based on existing data, shows that the Italian physicians use the I.T. in a lesser extent if compared to their colleagues in France, Germany, Great Britain, Holland and Denmark. Moreover, the authors proposes an overview, on the same topic, on surveys conducted in Usa, Australia, and Singapore. A special attention is payed on doctors adopting I.T. in Sweden and Ireland.