In this paper, we summarize our work in the field of eGovernment. First, we identify a critical dual integration deficit in contemporary public administration. A new modus operandi is proposed to overcome the consequent problems. We try to implement and exploit these new business models using semantic technologies as the enabling technology infrastructure. For supporting this effort, we have conducted in depth domain analysis and modeling to create the necessary top-level reusable models for the overall eGovernment domain. We call this set of models Governance Enterprise Architecture (GEA). GEA provides the knots for a reference eGovernment domain ontology.