Try searching for:
Mouse over each link for how to search for data and articles on your industry from newspapers and industry publications.
When researching your industry, find the NAICS (North American Industry Classification System) and SIC (Standard Industrial Classification) codes that apply.
Industry professional organizations collect data and statistics that may help with your business plan.
Find organization websites:
In your favorite search engine search the name of your industry plus the word "association" OR
Search Encyclopedia of Associations by the name of your industry
Research your competition in the place where you plan to start your business. Search for industry information in a local newspaper.