Useful medical information sites

Useful Medical Sites on the World Wide Web

I'll add to this as time goes by.

TREATMENTS

Easily accessible medical information aimed at GP's, started ten years ago by a couple of medical student. This is a wonderful site.
Prodigy
Best Treatments
Bandolier
Guidance NICE
Laboratory information
Skins - lots of pictures. Make your own diagnosis.

DRUGS

The British National Formulary Most of want you'd want to know about drugs.
Medsafe NZ site on drugs.
Drug effectiveness review project
Therapeutic Initiative Canada
Pregancy and breast feeding Sport and drugs
US Consumer site - worst pills.
Drug information US
Pharmac
Contraception
Emergency contraception

Grays anatomy
Medical text book

Travel medicine - countries, illnesses, treatments and immunization.
All you want to know about headaches
Pub Med Clinical Enquiries This is an American free search of literature set up by Clinton or his sidekick. Free medical science books searchable on line.
Hypertension guidelines
Cardiovascular risk calculator
Prostate cancer roulette wheel
Heaps of patient information on cancer
UK Guidelines on everything
Another list of sites
Genetic disease
Anti D use
If you have any useful sites I'd appreciate you putting them in your comments. Thanks.