The Seminole County Florida School District -- which recently signed up (and then had to cancel) McDonald's-sponsored report-cards has also approved a pilot program for school-bus audio advertising:
The company serves a sonorous mix of inoffensive music, public service announcements (buckle up, kids!) and a few harmless advertisements (maybe McDonald's?) to over 1 million children in 23 states. Bus Radio is based in Needham, Massachusetts, but lost its contract with the Needham school district after uppity parents objected to the crass commercialization of something as innocent as a bus ride.