The study aims at providing evidence on regional differences in the diffusion of ICT in the public sector in Italy, with a focus on different types of public e-services (eGovernment, eHealth, eEducation and Intelligent Transport Systems). Data are ob-tained by merging four different surveys carried out by Between Co. (2010-11) and Istat - Italy’s National Bureau of Statistics (2009). We pursue a three-fold objective. First, we attempt to overcome the prevailing attitude to consider the various domains of public e-service provision as separate from one another. In other words, measuring the progress of digital government requires a holistic view to capture the wide spectrum of public e-services in different domains (e.g. local and national administrative procedures, transportation, education, etc.) and the different aspects of service provision (not just e-readiness or web interactivity, but also multi-channel availability and take-up). Second, we shall tackle a major drawback of existing statistics and benchmarking studies of public e-services, which are largely based on the count of services provided online, by including more sophisticated indicators both on quality of services offered and back office changes. Third, we develop a sound, open and transparent methodology for constructing a public eServices composite indicator based on OECD/EC-JRC Handbook. This methodology, which incorporates experts opinion into a Data Envelopment Analysis, will allow us to combine data on different e-service categories and on different aspects of their development, and will enable us to define a ranking of Italian regions in terms of ICT adoption and public e-service development.