Securities and Exchange Commission
The Securities and Exchange Commission is a regulatory agency created during the New Deal in order to minimize abuse by corporate management of a company's shareholders. While the relatively recent abuses epitomized by Enron, and the more recent share option back dating scandals by already very rich executives demonstrate, an entity such as the SEC remains as necessary as other types of police and regulatory agencies.
All public corporations must file various reports with SEC on a regular basis. An annual report, such as the Form 10-K contains extensive information about the company including full financial statements as well as managment discussion of results. Other SEC filings inlcuded the Form 10Q (a summarized version of the 10K done on a quarterly basis) and 8K's where companies must disclose material information about it's activities. All such reports are availabe to the public through the SEC website, and most corporate websites allow access to these reports as well.