In theory, there';s a billboard that tracks what stations people have their car
radios tuned to;

and then displays appropriate advertising on the billboard.

- Now what if Everyone driving by is listening to

Dr Ruth..

- What does the sign display then ??


In article ,
(Dan) writes:


Has anyone ever heard of a device that you can place at your business
and it will tell you what radio stations people are listening as they
drive by? Sounds crazy but i think there might be such a thing.If
anyone has any info please post it or email :
thanks alot!