The Internet has changed the way we know our world, but it brings dangers as well as positive effects, especially for children. This book asks how we can police the Internet effectively and where the responsibility for this should lie. Investigating the roles of family, community and society as a whole in relation to this issue, it examines different methods of policing children's Internet usage using case studies from the US. The text addresses such issues as: who should define what is appropriate and for what age-group, and whether technology providers and policy-makers should take the lead, or whether it should be left to individuals to decide.