Outdoor Advertising Association of America was created in 1891.

Clear Channel is the largest outdoor advertising services company, followed by Lamar and CBS.

There are several places in order for one to find out some outdoor advertising agencies. However, it is suggested that one should check out the website Outdoor Media Center.

it depends on what you are talking about. an outdoor advertiser sounds like a marquee (that big metal sign that advertise sells outside an establishtment). the other outdoor advertising is describing what kind of advertisement. like someone specializes in promoting something outdoors. so an outdoor adveritiser promotes advertising outdoors. this was a very good question!

1. Internet Advertising

2. Television Advertising

3. Radio Advertising

4. Print Advertising

5. Outdoor Advertising

6. Non-traditional Advertising.

7. Product-Oriented Advertising

8. Image Advertising

9. Advocacy Advertising

10. Public Service Advertising

11. Direct Mail Advertising

12. Display Advertising.