In Presenting a Professional Indie Image on the Noverse Blog, I present a checklist of all the things you need as an indie to present yourself to strangers via email with some credibility:

You are what you do, not what you say. – C.G. Jung

As my Hiltmon.com blog takes off, I am starting to get emails from indie developers promoting their wares. This is great, I love getting them, looking at new products and helping out where I can. But many of them fail on the basics of presenting themselves as the professionals they are.