People often conduct business research with the intent of using it to inform a business plan. So where should you visit on the interwebs to find a good business plan how-to? 1. The United States Small Business Administration has a thorough guide that walks you lists the major component of within a business plan, and if you need to bounce your plan off a sounding board, they can help you find a mentor too.
2. In terms of sheer volume, Bplans.com offers hundreds of free sample business plans across most industry categories, making the odds reasonably good that you will find a comparable plan to give you inspiration. Unfortunately their sample charts and financials are largely for show, unless you actually shell out money for plan-writing software that holds your hand througout the process.
3. The Center for Business Planning has a selection of winner plans from the prestigious Venture Labs Investment Competition (formerly the Moot Corp Competition) which is hosted by none other than UT Austin. While the companies are not necessarily real, the time and effort invested by the student compeitors certainly are, making this twenty-some-odd series of plans worth reading.
Note: As you're perusing the plans' intro page, it may not be readily apparent that links to the rest of the plan are available through the small blue Table of Contents box at the bottom of the page (see pic).