Click on this link, and then move your cursor over each of the Boolean operators to visually see how they work. 

• Best of the Best Business Websites   
                        

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• Nolo : Law for All - business, LLCs & corporations center
• Internet Public Library    
• American Corporations Financial Data: EDGAR  
• Doing Business in... hints on starting a business in another country
• NAICS-North American Industrial Classification System - a numbering system for industry
• Beonline - business information from the Library of Congress
• American Factfinder-fact sheets on geographic areas
• BizStats-financial data on industries
• City-Data.com-detailed information on cities-some advertising
• Country Studies – Library of Congress
• County Business Patterns-good resource for business activity eg # of stores by type in a county or city