British Association for Sexual Health and HIV (BASHH) : organisation formed by merging the former Medical Society for the Study of Venereal Diseases (MSSVD) and Association for Genito Urinary Medicine (AGUM).

British HIV Association (BHIVA) : includes downloadable HIV treatment guidelines.

British Psychological Society Faculty for Sexual Health & HIV : forum for psychologists, and other professionals working in the area of sexual health and HIV.

Children's HIV Association of UK and Ireland (CHIVA) : an association of professionals who are committed to providing excellence in the care of children infected or affected by HIV and their families.

Dietitians in HIV/AIDS : registered dietitians who specialise or have an interest in HIV/AIDS.

GUNA : Genito Urinary Nurses Association.

HIVPA : HIV Pharmacy Association

NANCSH : National Association of Nurses for Contraception and Sexual Health.

NHIVNA : National HIV Nurses Association.

Royal College of Physicians: HIV testing guidelines for general medical services now available online.

SSHA: Society of Sexual Health Advisers.

African HIV Policy Network (AHPN) : umbrella organisation for African community groups addressing HIV & sexual health.

All Party Parliamentary Group on AIDS (APPGA) : backbench group of MPs and Peers in UK Parliament.

AVERT : charity dealing with health education and research, provides good information on its website, including for young people.

Centre for HIV & Sexual Health : organisation dealing with health promotion and training. Produces SHiNE magazine (Sexual Health Information News Exchange).

Department of Health : Sexual health section of large government website.

George House Trust : charity supporting people affected by HIV in North West England.

Herpes Viruses Association : charity providing information and advice to people
affected by herpes simplex and other herpes viruses.

Independent Advisory Group on Sexual Health and HIV : monitors progress and advises government on implementation of the sexual health and HIV strategy for England.

National AIDS Trust : charity which develops policies and campaigns on HIV.

Sex Education Forum : authority on sex and relationships education, based at the National Children's Bureau.

Terrence Higgins Trust : major charity providing services to people affected by HIV, and health promotion.

UK Coalition of People living with HIV and AIDS (UKC) : user-led advocacy and service organisation for people living with HIV and AIDS. Publishes Positive Nation magazine

Positively Women : charity working to improve the quality of life for women and families affected by HIV.

AIDSmap : comperehensive site from the National AIDS Manual, particularly useful for people living with HIV and AIDS. Plus database of AIDS organisations worldwide, and information for developing countries from the International HIV/AIDS Alliance.

Health Protection Agency : HIV/AIDS, STI and other infectious disease surveillance, regular statistics on numbers of reported HIV and AIDS cases, other STIs, anonymous HIV prevalence surveys, and GUM waiting times audit.

HIV i-base : HIV treatment information for healthcare professionals and HIV positive people.

Greater Manchester Sexual Health Network

South West London HIV & GUM Clinical Services Network (SWAGNET)

Roche HIV : Roche HIV treatment developments and updates for physicians.

Playing safely : A site for young people that provides clear up-to-date information on sexual health issues.

worldAIDSday.org : Website by the National AIDS Trust on this year's World AIDS Campaign and events in the UK.

See also some of the voluntary sector, service user and other organisations for more health promotion and public information.

If you are worried about your own health or that of a friend or relative, you could also ring the confidential National Sexual Health Helpline 0800 567 123 (24 hours) or THT Direct Helpline 0845 1221 200 (Mon-Fri 10am-10pm, Sat 12-6pm).