Some links I've found useful!

'what you need to know about mouth cancer' booklet
http://www.cancer.gov/cancertopics/wyntk/oral

Mouth Cancer Foundation website
www.rdoc.org.uk

Macmillan Cancer support
www.macmillan.org.uk

www.mouthcancer.org

Cancer research uk mouth cancer page
www.openuptomouthcancer.org

headandneckcancer.co.uk