I suggest that the often simplistic dichotomy of bonding and bridging needs to be re-appraised and instead offer an alternative way of thinking about these social ties. The distinction between them tends to be understood on the basis of the ethnicity of the people involved - bonding involves close ties with 'people like us' while bridging involves links beyond 'group cleavages'. Insufficient attention has been paid to the actual resources flowing between these ties or the kinds of relationship developing between the actors involved. The nature of these social networks may be better understood by focusing on the relationship between the actors, their relative social location, and their available and realisable resources. Data from a qualitative study of Polish migrants in London is used to illustrate this approach.