Josep Carreras Leukaemia Research Institute (IJC) has carried out in its web site an accessible design aiming at guaranteeing the access for all the society to information and knowledege. For this reason, we use standard technology set up by the W3C (Worl Wide Web Consortium) and we follow the guidelines established by WAI (Web Accessibility Initiative) in the level AA, defined by excluding in the pages any element or technology which could prevent from using the contents and services of the web site to certain groups, or which could make more difficult gaining access.