The HealthGrid conference is the premier conference on the transformation of biomedical research, education and medical care through the application of Grid technologies. HealthGrid is dedicated to: a. Enhancing biomedical research and healthcare delivery; b. Creating an open collaborative virtual community; c. Communicating the collective knowledge of the HealthGrid community HealthGrid is an interdisciplinary community of computer scientists, physicians, medical educators and students, epidemiologists, bioinformatics and medical informatics experts, military medicine specialists, security and policy makers, economists and futurists. The conference program will include a number of high-profile keynote presentations, complemented by a set of refereed papers, which will be selected through the present call for papers. Registration is now officially open. The early bird registration are available until 13th April 2008.