We have a new resource called Ad$pender on Business, Management, and Marketing, Electronic Media Communication, Journalism, and Databases A-Z. Here's a brief description:
"Ad$pender™ is a tool that allows you to view a top-level summary of the multi-media advertising marketplace. Ad$pender monitors advertising expenditures and occurrence information for 3+ million brands across 18 media. Ad$pender is the popular choice of research, sales and marketing professionals. Ad$pender is a fast and easy-to-use tool that allows you to break down information by category, parent, company, subsidiary and brand."