Bure Clinic, Genitourinary Medicine Service

School of ICASA Enhanced Sexuality - Sexual surrogacy centre for men and women with psychogenic sexual difficulties, based in London. Includes descriptions of surrogate partner sessions and details of home sexual healing courses.

Family Planning Service - Help and information about contraception and sexual health. Includes a facility to search for local clinics.

Like It Is - Information for teenagers about sex and other adolescent issues. Topics include puberty, peer pressure and contraception. Includes a glossary of sexual terms and expressions.

NetDoctor.co.uk - Articles and advice about relationships, sex and contraception. Includes 'Ask a question' feature.

Brook Advisory Centres - Confidential sex advice to all young people. Includes advice for under-16s and a clinic locator option.

BureClin Research Associates Ltd - Dedicated sexual health service provision for health insurance holders.

Society of Sexual Health Advisers - Information about sexually transmitted infections and related conditions, and where to get help and advice. Online forums for both members and non-members.

British Society for Sexual Medicine - Professional organisation informs about research activities and annual meetings; includes application form for new members.

Antenatal Results and Choices - UK Charity offering advice and support for those considering, going through or making decisions based on the results of tests.

Daisy Network - Registered UK charity supporting those effected by premature menopause.

HER Trust - Charity promoting an evidence-based, holistic and supportive approach to women's reproductive health through education and research.

Condom Essential Wear - Promoting condom usage with information and a quiz about some sexually transmitted infections.

RU Thinking About It? - Provides straight forward sex advice for teenagers including common myths, condom advice and local contact centres.