Information about Mephedrone can be found from DrugScope, the UK’s leading independent centre of information and expertise on drugs: http://www.drugscope.org.uk/resources/drugsearch/drugsearchpages/mephedrone
Resources aimed at young people to inform them about mephedrone can be purchased from Lifeline Publications via their website: www.lifelinepublications.org.uk. These are the Mephedrone FAQs booklet, 50p each, and Mephedrone Postcard, 40p each.
A booklet named 'Meow' is available from www.hit.org.uk - this is 45p
The FRANK website, www.talktofrank.com also has a section about Mephedrone.