Dimitris Alexandrou graduated in 2004 from the School of Electrical and Computer Engineering of the National Technical University of Athens (Greece). His Diploma Thesis was in the area of Mobile and Personal Communications (Location Based Services in Wireless LANs). He is also working as an R&D consultant with European Profiles S.A. and EPIS Ltd. Dimitris Alexandrou is currently working in a number of research IST projects developing technological infrastructures that aim to leverage knowledge sharing, in e-Health and e-Government. He is a PhD candidate in the School of Electrical & Computer Engineering at NTUA. His current research interests include knowledge management, e-Health and e-Government.