- Mediamorphis: Network Media Industries and the Forces of Change and Conservation
- blog by Carleton University Professor Dwayne Winseck.
- Canadian Media Concentration Research Project (CMCRP)
- Sedar database of filings of Canadian companies.
Global (also includes Canadian data)
- Business Source Complete
- Mergent Online (includes Mergent Industry Reports)
- Edgar database of company filings at Securities Exchange Commission, NYC
Tip: Most company web sites will include annual reports and 10k reports. Look for headings such as Investor Relations or About Us.