You should also be aware of what NOT to put in your business plan. The issue of future forecasts is a contentious one. While it's all very well attempting to make future forecasts, it's difficult to predict too far ahead. What you need is to look to the short-term future and then produce your plan accordingly. As the business plan then continues, you can modify the content as and when it's necessary. Long-term planning, however, will only prove to be a pointless exercise.
A good business plan communicates one's ideas to people, communicates his mission, objectives, management approach, responsibilities and demonstrates how one's strategy will increase profitability and performance, identifying his audience without overreacting his aims and objectives of his business plan. A business communicates in two ways- Internal communication and External communication. Internal communication includes communication of corporate vision, shared value, strategies, guiding principles and employee motivation. External communication includes branding, customer relation, marketing, advertising, media and public relations etc..