Through an in-depth analysis of interactions on the net, our goal is to understand dynamics that govern the relationship between Health and Web. HWO is a point of reference and collaborates in partnership with Institutions, Scientific Societies, Patient Associations, Universities and all people involved in digital health information on web, to help better understand the value and impact that the world of web has on the health outcomes of citizens. HWO has developed an analysis and monitoring model of the digital and web health sector that can provide an overview of offer, modality and quality of information related to the world of health and its specific topics.