Are there emerging markets or market segments? Where does this product or service currently perform best? Possible Data Sources: trade associations; trade journals; attorneys & accountants dealing with the industry; industry salespeople; state business websites; focus groups.
At this point, you may be tempted to skip writing a business plan altogether, viewing it as an unnecessary exercise in jumping-through-the-hoops, suggested by some old business professor who probably never held down a "real" job anyway.
Executive Summary - One to three pages that summarize all the information to follow; come back and write this last.
When people think about getting into some kind of business, the first thing they should do are look for reputable small business consultants. These are individuals who have years of industry experience and can structure your organization in a manner ensuring positive results.