Business is about providing solution.
Being a middle man is a good model.
Web is a good place to market your business (search engine).
To sell, ask the customer a good question. Make them picture the problem, being solved by your solution.
Remember to close the sell: "Based on what you are saying, would you like to place an order?"
Licensing is a good model. It is better than just trading time with money.
You know there is a market there, and no competition. Try to expand the business at this point. (like buying a database from someone).
Starting a business needs to talk to your spouse. She has to be with you. Or either business or marriage will fail. If you have kid, spending time with them!