Advertising Research -

I'm looking for research on the advertising industry. Specifically, i'm looking to see how big the entire advertising market in the US is and how much of that is spent in the restaurant industry. I have a website that will cater towards restaurant advertising and i'm looking to do an evaluation of the industry. All of this information would be included in my business plan. Things like - How much of that advertising is done online vs. other methods ? Whats the trend for the last several years. Is spending going up in online ads ? Going down ? What are the top sites in which restaurants advertise ? If you have never done this sort of thing before. Don't bid with "i can try". Please include "advertising" in your bid. If you don't I will reject it.