Currently e-Government initiatives have a highly fragmented nature and are hardly coordinated. An architectural approach aimed at reusing components as shared services can support government agencies in the implementation of their e-Government initiatives. In this paper we describe research aimed at identifying and prioritising the importance of generic services that can be shared among public agencies. Generic shared services are identified and prioritised by technical experts and government representatives using a group support system session. This has resulted in an action plan to implement the services and use them as part of future e-Government projects.