TIPS
Be Careful
There are a lot of vendors on the internet offering reports on almost any industry for big $$$ - these aren't necessarily reliable.
Scan the information that is available for free and see how you can expand on it, for instance if they show a list of top five companies see if you can find information on those companies on the web and in the library databases.
Industry Codes
NAICS (North American Industry Classification System) and SICS (Standard Industry Classification System) codes are used in some of the business databases. They can provide another point of access to information.