Dear Reader,

How do you start your email? Is "Dear ____" too formal? This Wall Street Journal article suggests that the use of dear as a greeting is incorrect. It is either too initimate, if you don't know the reader, or too impersonal, if the reader is someone the writer already knows. However, just launching into the content of the mail is too abrupt, according to one etiquette expert. Is "Salutations" or "Hey" any better?