This text demonstrates that my work on young people who are exploited through prostitution and young people involved in problematic drug use in Britain at the end ofthe twentieth and beginning ofthe twenty-first century constitutes a significant contribution to advancing our knowledge ofthese inter-related issues. The text demonstrates that, in Britain, at the end of the twentieth and beginning ofthe twenty-first century, young people exploited through prostitution and young people involved in problematic drug use share in common lived experiences in poverty at the margins of society. The common theme demonstrated here is that, as a result ofthe poverty generated by social and economic policies adopted in Britain in response to gIobalisation, 'street cultures' play an important role in the development and maintenance of survival strategies adopted by socially marginalised and economically disadvantaged young people. The discussion argues that these cultures perform important functions in time and space for socially and economically marginal young people. They do so in different ways for different young people. At the same time, however, they serve to further entrench their social and economic exclusion and disadvantage.