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.
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.
After doing this, they will give recommendations based on what they find. If there are coffee shops already in place, one recommendation they might make would be to include free Wi-Fi as a way to bring in more customers.
American Demographics (adage.com/americandemographics): Just as the title suggests, numerous free reports about consumer demographics in the U.S. nationally and by statistical area.