U.S. Small Business Administration Business Plan Guide

Includes links for business plan basics, writing and using the plan, and training workshops.

Bplans.com: The Business Planning Experts

Provides information on writing business plans, available software, along with samples of real business plans.

Investor Ready Business Plan

Assists businesses in creating effective business plans in order to raise money from venture capital sources.

Center for Business Planning

Tips for writing business plans, including online interactive consulting, sample small business plans and outlines.