An apparatus and method for selectively displaying data includes an aerial
support mechanism, such as a helium balloon, adapted to be positioned at
a desired location, which may be changed based on a user preference. The
apparatus also includes a processor, coupled to the aerial support
mechanism, which accesses, retrieves and stores display data. A
projection module is coupled to the processing module and displays
portions of the data, as a function of the processor. The projection
module displays the portions of the data on a surface such as the ground,
side of a building or screen. User-input commands determine the portions
of the data displayed by the projection module and the projection module
displays different data over a predetermined period of time. Also, a
mobile display, mounted on a bus or taxi, can be used to display data
based on the location of the mobile display.