You may have seen the "one page business plan" format before as it is a powerful at-a-glance view of your overall business model. Typically when people are referring to business model, they really mean revenue or financial model—really, a business model is a complete view of what you are doing, how you are capitalizing, who your customers are and where and how are you reaching them. While that covers a lot of ground, the One Page Vision sheet allows you to get to succinct answers to these questions to help you communicate them effectively.
The One Page Vision Sheet is an editable PDF file, download here.
In addition to the One Page Vision Sheet, download the companion instructions here.