Abstract: A linked mobile business and advertising unit that can sell products, services, and/or publicity. A plurality of units, together with a control unit, can form a chain. The control unit can sell time and space for the publicity devices controlled by the units. It can run publicity campaigns selecting geographical zones, market segments, times, and dates, while measuring the effect on sales. It can remotely turn on/off publicity devices. The control unit can suggest new locations, optimize inventory levels, and centralize customer information and transaction history. The units don't require foundation and can install/uninstall themselves rapidly, leaving no trace. The units are self-sufficient in services such as water, electricity, gas and drain; and, have flexibility to use these services when available. The units can transform themselves to ease transportation, to optimize operation or to protect against vandalism. The units can be configured as drive-thru, drive-in, or drive-inside.