Non UK MH Sites:
Research:
http://www.nimh.nih.gov/publicat/index.cfm
National Institute for Mental Health, based in the US, providing information about research activities.
http://www.ariel.ucs.unimelb.edu.au/~nepp/
The National Early Psychosis Resource Center ( Melbourne, Australia) provides resources including a searchable index of journal articles and research papers and a description of relevant educational material on psychosis in young people.
General:
A large site with the biggest links page I have ever seen! Its main downfall is that it is very americanised, but still a valuable resource.