There are over one hundred different forms of outdoor advertising also know as out-of-home advertising. In short outdoor advertising is any type of promotional message that reaches consumers when they are not inside of the place in which they reside. This is to be compared to print like magazines and direct mailers, broadcast like radio and tv, and also internet advertising which focuses on targeting consumers inside of there homes. It is for this reason outdoor advertising concentrates its efforts on those who are on the move. This requires them to place advertisements in all kinds of places. One of the most common forms of outdoor advertising is billboards, but ads are also place on things like gas pumps, in subways, on bus stop benches, on taxi’s and pretty much anywhere a message can reach the consumer.