What makes a 'community'? The question becomes interesting in interinstitutional or interdisciplinary contexts premised on the creative mix of expertise from diverse locations. Knowledge comes from and is drawn into different organisational structures. At the same time, the notion that knowledge travels (across locations) invites one to reconstruct communities in its wake, tracing connections after the fact. Late twentieth, early twenty-first century citizens of the knowledge economy, inspired by electronic circuitry, also see sense in literally planning knowledge communities, imagining connections-to-be. This paper explores certain models of knowledge dispersal in order to ask what kind of 'community' the Cambridge Genetics Knowledge Park might be generating. The ethnographic present is 2003.