Missing from this article: you have something worthwhile to say. Honestly, I don't think I have anything to justify a book length treatment at this time. Okay, I'm not an entrepreneur, just an engineer at a startup, but I don't see the founders having all that much time to be sitting around writing books either.
Related to this, what are good book authoring tools? Or at least the ones you use for writing stuff that can be exported to pdf, html or printed out. I'm talking things in the line of Tex, Docbook, etc.