Was asked to answer the question "What is a professional photographer". My answer, and those of 6 other professionals... in this awesome article. Check it out.
“I think that you can be a professional photographer by definition – which means to earn a living doing photography. Unfortunately, that does not mean you have to be great at what you do, just good enough. Alternatively you could be known as someone who does work so great that people expect you to earn your living doing it – thus earning you the title of Professional photographer.
I prefer to aspire for the latter.”
Benjamin Von Wonghttp://inmybag.net/so-you-think-youre-a-professional-photographer/