Assoc. Prof. Robert Ackland has a joint appointment in the School of Sociology and the Australian Centre for Applied Social Research Methods (AusCen) at the Australian National University (ANU). He was awarded his PhD in economics from the ANU in 2001, and he has been researching online social and organisational networks since 2002. He leads the Virtual Observatory for the Study of Online Networks Lab (http: //voson.anu.edu.au) which was established in 2005 and is advancing the social science of the Internet by conducting research, developing research tools, and providing research training. Ro...