Ad$pender Online, from Kantar Media, provides very useful information on advertising spending by brand (and by major advertising media).
MRI+ Provides detailed product usage data. Note—All users must be registered (one-time registration). Click on "Register for a free account" to begin. On subsequent use, login with your account username and password.
The Advertising Red Books. Agencies. (formerly known as Standard Directory of Advertising Agencies)
This series of publications provide detailed information on advertising rates, policies, insert costs, mechanical specifications, circulation and distribution. The publications listed below are located in the Business Library for various years.
*Most recent editions as of Jan 26, 2016