* The Campaign for State Education (www.casenet.org.uk). Tel: 020 8942 2826.
* Comprehensive Future (www.comprehensivefuture.org.uk).
* The National Grammar Schools Association (www.ngsa.org.uk). Tel: 0121 567 5222.
* Details of research and publications of state education, including the research by Professor Anne West, can be accessed via the website for Research and Information on State Education (www.risetrust.org.uk).
* The Grammar School Question, by David Crook, Sally Power and Geoff Whitty, (Institute of Education, pound;6.95).