EDGAR - Electronic Data Gathering, Analysis, and Retrieval System. There are several ways to access this:
EDGAR Online - Source for Today's SEC Filings by Cybernet Data Systems, Inc.
EDGAR Database - Database of Corporate information from the SEC directly.
LexisNexis - world's largest provider of credible, in-depth information. From legal and government to business and high-tech. Expensive but probably worth it.
Thomas Register of American Manufacturers - industrial manufacturing supplies, equipment, plastics, valves, fasteners, motors, compressors, engineering, CAD/CAM, sheet metal fabricating.
