BPlans

has some free business plan examples for fictitious companies and suggestions on how to write plans among other helpful tips.

http://www.bplans.com/

Lean Start-up

is a new process of starting a business especially for tech start-ups that favors experimentation vs. elaborate planning, customer feedback over intuition and incremental design over big front end development.

http://steveblank.com/tools-and-blogs-for-entrepreneurs/

Business Model Canvas

Business Model Canvas is an entrepreneurial and strategic management tool/template for developing new or documenting existing business models.

https://canvanizer.com/faq/how-to-create-business-model-canvas-with-ms-word-or-google-docs

Powerful Presentations by the Kauffman Founders School

shows you how to break through by communicating and presenting your ideas and business in compelling ways.

http://www.entrepreneurship.org/Founders-School/Powerful-Presentations.aspx