Backlit units: Outdoor media structures built to contain lighting in order to transmit light trough translucent advertising.

Bar coding: Application of bar codes that contain location information onto outdoor media structures. Used in computerized proof of performance systems.

Beach panel: Advertising panels attached to lifeguard towers.

Bill poster: Employee of an outdoor media provider, responsible for attaching the printed ads on the poster panels.

Billroom: Place where advertising paper is stored and prepared for the bill posterís use.

Blanking: White paper border surrounding the advertising poster. Blanking paper is located between the poster and panel molding.

Bleed poster: The use of blanking papers of the same color as the poster background to bring the design up to the molding.

Bleed-trough: A production difficulty where the previous design used on a structure can be seen through the current message.

Blimp: Light ships ranging to hundreds of feet in length that carry specially constructed advertising displays; scheduled to fly over special events for massive exposure. There are some smaller blimps used for promotional purposes in the point of sale and other civic events.

Blister: Paper or paint that sometimes is separated from the structure forming air pockets or blisters.

Blocked panel: Advertising structure whose view has been obstructed on a more or less permanent basis.

Boards: Common term for posters and bulletins.

Booked: Acceptance of a contract for outdoor media space by the plant operator.

Bulletin: The largest of the standardized outdoors advertising structures. Located primarily on major highways, expressways or principal arterials. Bulletins rapidly achieve high levels of exposure. Usually created by large-format digital printing on flexible vinyl, bulletins can be customized with extensions and other creative embellishments.