If you are a startup, it is critical to have a business model. It does not have to be complicated or run into many pages. In fact, a one-page summary is usually sufficient. The main areas are: who are the target customers and where revenue comes from. Just keep it simple and sweet. If you are already operating your business, it is always good to re-visit your business model to ensure it is still relevant and competitive.
Here is a simple and informative video, explaining the key areas (building blocks) of a business model.
Business, economy, education and current issues. Providing tips, tricks and tools in managing business.