[bravura]

This question is far too open-ended to answer.

I would avoid a ad or data-selling business upfront. I would focus on a simple transactional business (i.e. they give you money and you give them a product or a service for a month), and learning about your market and why they care about what you're offering.

[iworkforthem]

Are you able to provide examples of it? i.e. stock exchange sell data feed, etc.