If you are looking for health services near you or advice about a particular condition, the official website for the National Health Service will have the answer.
The Department of Health
The official government website for the Department of Health in the UK. If you are looking for information about publications and policy, this is the place to go.
NetDoctor provides information and advice about a huge range of health conditions and also has an online community set up for you to find peer-to-peer support.