The Portable People Meter is an electronic device that measures nearby radio signals.

FORBES: Magazine Article

Late-Monday, Arbitron, said it was delaying the expansion of its new electronic radio ratings system, the Portable People Meter.

FORBES: Magazine Article

Late-Monday, Arbitron (nyse: ARB - news - people ), said it was delaying the expansion of its new electronic radio ratings system, the Portable People Meter.

FORBES: Arbitron Goes Off Meter