What are the knowledge network configurations associated with effective e-government? To answer this question, a social network perspective is applied to explore the connection between e-government actors’ social networks and their perception of e-government effectiveness. Specifically, this study closely looks at both intraorganizational networks between program and IT units and interorganizational relationships with IT vendors in the context of local egovernment. Two Korean local governments who provide online parking services through the same IT vendor were selected as comparative cases. Through the network analysis of two local governments, the study suggests preliminary findings for the knowledge network conditions for effective e-government: e-government effectiveness is likely to be enhanced (1) members of IT and program units are linked through a greater number of strong cross-unit ties; (2) they maintain strong ties with IT vendors; (3) CUBS take central positions in knowledge networks in a program unit; and (4) they are embedded in high density of intra-unit networks within their units.