Bplans, owned and operated by Palo Alto Software, contains a collection of free sample business plans, practical advice on planning, interactive tools and calculators for creating a business.
"Purdue Extension and its economic development partners at Purdue University and in Indiana offer publications, programs, and resources to help you succeed at your new business venture."
"SBA's Business Plan Tool provides you with a step-by-step guide to help you get started." Free registration is required which allows you to save the file and update it at any time.
Census Business Builder - Small Business Edition
The Census Business Builder uses an easy menu format to help you create business county- and city level reports based on your type of business and location.
The Entrepreneur's Guide to Writing Business Plans and Proposals by 
