A series of online tutorials covering many Principles of Marketing are available from KnowThis.com. There is a separate tutorial on How to Write a Marketing Plan.
There are many free Sample Marketing Plans available for your reading pleasure.
Refer to N.J. Regulations from the New Jersey Administrative Code for requirements for specific business activities e.g. N.J.A.C. 8:43A, Ambulatory Care Facilities.
Refer to the Foundation Center's Links to Nonprofit Resources for useful advice on management, fundraising, and developing volunteers. To locate foundations and other grant-making organizations, search the Foundation Directory Online.
For manufacturers and distributors of industrial products and services, search the ThomasNet directory. For manufacturers, distributors, professionals, and service providers in the building and construction industries, use The Blue Book.