I designed the Company Research guide to provide an overview of company research sources available from the Blume Library and online.
The Company Profiles section lists resources that provide lengthy analysis about individual companies. The Financial Data tab includes information about SEC filings and other sources that aggregate company financial information. Company Produced Info gives you some tips to find annual reports, conference calls, and other types of information distributed by companies. Finally, the section Rankings & Government Information offers some resources that may add to the overall picture of the company you are researching.
And, don't forget to look for articles about your company in the sources listed under Finding Articles.