Advertising industry trade magazines are good sources for market share data, ad spending, promotion trends, media and outlet choices, creative samples etc. The full-text of ad magazines are in the databases ABI/Inform and Business Source.
CARDonline - Canadian Advertising Rates & Data
Advertising rates and related data available for TV, radio, newspapers, magazines, digital, out of home media in Canada and selected International media.
NOTE: Queen's Library academic access does not allow the ‘media lists and reports’ functions. Also, television advertising rates are often only ‘available on request’ as pricing depends on time of day and ratings.