A business model is a holistic framework to design how a business might create and capture value. A business plan is a document explaining how a business might become viable. Where a business model is made to be tested, a business plan’s primary goal is to gain investments.
A business model is a framework to understand the way an organization works, a business plan is a document that helps to understand the future strategy of an organization and its expected performance in a three to five years time frame.
While in some cases a business plan can also serve the purpose of better understanding your own business, and in some other cases the business model can be comprised within the business plan.
How to Write a Business Plan by 
Business Model Generation by 
HBR's 10 Must Reads on Business Model Innovation (with Featured Article Reinventing Your Business Model by Mark W. Johnson, Clayton M. Christensen, and Henning Kagermann) by 
A one-page template for developing a start-to-finish business plan.
Lean Canvas provides tools, content, and coaching for entrepreneurs, including guides that help you communicate your business idea in one page.
The $100 Startup provides downloadable guides that can help you quickly move an idea forward. Not as detailed as a complete business plan, the site's "Resources" section includes a One-Page Business Plan and a 39-Step Product Launch Checklist.
Create a visual map for the success of your business.
Think outside the business plan with these ideas for alternatives to traditional plans.