SEC EDGAR: http://www.sec.gov
This is a major source of financial and some nonfinancial information such as management discussion and analysis (MD&A) and 10-K or 10-Q Forms. This is a government supported source.
Hoovers on-line: http://www.hoovers.com
This is a vast resource of financial and nonfinancial information for about 10,000 companies. It also provides industry information and news about activities of these companies. The nonfinancial information of this source compliments the EDGAR’s.
Disclosure Company: http://www.disclosure.com
This provides access to financial and management data of over 100,000 companies worldwide. It is focused to meet the information needs of investors and creditors. For example, it prepares one page representations of a company’s background, management, earnings and pricing data.
Other sources:
Auditor's Report Contents Page