Baby boomers Those born between 1946 and 1964, when birth rates rose sharply, and now a popular target group for marketers.
Bank cards A consumer list attribute that selects users of credit cards.
Bar code Machine-readable vertical bars referring to ZIP codes, which speed mail through the U.S. Postal Service.
Base price In lists, the amount paid before segment selects, processing charges and shipping costs have been added on. This is usually expressed on a per thousand basis.
Behavioral lists Consumer lists which offer selection criteria on the basis of leisure activities, often compiled from questionnaires.
Bill-me order A method of payment allowing a person to examine a product before making a commitment. This type of list is usually less responsive to outside mailers than one in which payment was made up front.
Bill-to address The address that receives the bill, as opposed to the address that receives the shipment.
Birth dates A selectable feature on consumer lists, often shortened to edob for "exact date of birth."
Block group or subblock A demographic area defined by the U.S. Census, consisting of a few hundred households.
Brokerage commission A percentage of a list's rental cost that the list owner pays to the list broker for arranging the transaction. Commissions are frequently negotiable, but are often set at 20%.
Business list A list of corporations or other professional entities, or employee lists.
Business overlays Demographic data that is added to an existing business customer file, such as job classification, number of employees or telephone number.
Business universe The complete list of all businesses and professional entities in a given geographic area.
Buyer A person or group that has purchased a product or service. In mailing lists, a selection that indicates the segment of a list that has purchased products by mail.