http://thenextweb.com/socialmedia/2014/11/26/marketing-email-that-drives-results/?awesm=tnw.to_a4hDb&utm_source=t.co&utm_campaign=share%20button&utm_medium=referral&utm_content=The%20anatomy%20of%20a%20marketing%20email%20that%20drives%20results