Licensing -

Find Your State Insurance Department.

Zip Code Finder- 
http://zip4.usps.com/zip4/citytown.jsp
Allows you to look up zip codes and standardized addresses.

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Insurance Publications

• Advisor Today
• Best's Review
• Broker World Magazine
• Insurance Networking
• Life Insurance Selling Magazine
• The National Underwriter Company

Rating Companies-

• A. M. Best Company
• Standard & Poor's
• Weiss Ratings, Inc