Psychology Today: Orthorexia - Too Healthy? - Article features a history of the condition as well as an outline of common criticisms from the medical community on the validity of orthorexia as a "genuine concern." - http://www.psychologytoday.com/articles/pto-3603.html
Orthorexia Nervosa - Features an overview of the condition as well as a list of common signs and symptoms. - http://www.pamf.org/teen/life/bodyimage/orthorexia.html
What is Orthorexia? - Steven Bratman, M.D., offers a basic overview of the condition as well as a simple self test to help determine whether you should consult your doctor. - http://www.orthorexia.com/Index.php?page=katef
BBC News: I am an orthorexic - An obsession with healthy eating could be dangerous, doctors have warned. So what's it like suffering from orthorexia? - http://news.bbc.co.uk/1/hi/magazine/4389849.stm