London Hernia Centre:
http://www.londonhernia.co.uk/consultants/

The National Institute for Clincal Excellence (NICE) guidelines:
http://www.nice.org.uk/guidance   or   http://www.nice.org.uk/search?q=hernia

Information from a good NHS website  – NHS Choices:
http://www.nhs.uk/Conditions/Hernia/Pages/Introduction.aspx?url=Pages/what-is-it.aspx

Some more basic information:
http://www.surgical-tutor.org.uk/default-home.htm?system/abdomen/hernias.htm~right

British Hernia Society
http://www.britishherniasociety.org/about-us/presidents-message/

Melbourne Hernia Clinic
http://www.melbourneherniaclinic.com/