A lot of discussion has recently focussed on the purpose and content of citizenship lessons within the curriculum. And the debate hasn't just been limited to educational publications - the Celebrity Big Brother controversy caused the issue to spill over into television reports and the pages of daily newspapers.
If you're interested in this topic, there is plenty of freely available up-to-date research which you can refer to. The DfES has just published a detailed literature review and case study which provides an in-depth picture of current practice within schools; this follows on from a recent Ofsted report which examined citizenship in secondary schools. Or if you'd like to learn about different international approaches to the subject, then the recent report from INCA should provide you with an excellent starting point.