Outdoor advertising space comes in all forms and types:  transit advertising media, bus advertising media, bus stop/shelter advertising media, bus bench advertising media, subway advertising media, train/rail advertising media, billboard advertising media, mobile billboard advertising media, airport advertising media.

Bus advertising media is one form of transit advertising media.  Bus ads are focused on the outside and inside of public transit buses.

Another form of transit advertising is bus stop/shelter advertising media which are displays on bus stops and bus shelters.

Bus bench advertising media goes hand-in-hand with bus stop advertising and is available across the country.

Many advertisers also succeed with subway advertising media which are highly effective in northeastern cities.

Train/rail advertising media is also available in northeastern cities, but is slowly becoming available on the west coast as well.

For advertisers who seek large impressions, billboard advertising media is highly effective and is generally available in larger and medium size cities.

Finally, airport advertising media, which is available in all major airports, is great at reaching travelers.

Many companies offer outdoor advertising media, including direct companies, resellers, brokers and agents.  Always look for the best deal, regardless of whether it's from the bus company, or from a broker.  Often, brokers can offer better deals because of volume buys that must be resold at rock-bottom prices.

Many times, as a result of a cancelation, fire sales are offered to advertisers at heavily discounted prices.  Look for these deals when negotiating with your outdoor ads vendor.