On the business side, there is lots available online from the sec for public companies that can help you do things like size a market, list the top competitors,

On the business side, there is lots available online from the sec for public companies that can help you do things like size a market, list the top competitors, etc. See http://www.sec.gov/edgar.shtml http://www.sec.gov/edgar.shtml . You can also use the google for talks by top execs, esp to analysts (esp. wall st.). That's a great quick way to get a sense of how they think about their different markets. You're giving yourself a huge mountain to climb of research. Can you focus on a subset of issues? Note that customer info can be simplifying - if people are convinced something has poor performance, then that defines the market reality.