Arbitron Commercializes PPM in Eight Markets

Arbitron announced on Monday (Oct. 6) that it has commercialized its portable people meter radio ratings services in eight new markets, two days before the originally-scheduled date of Oct.8. The research firm also announced that it has asked the United States District Court for the Southern District of New York for a declaratory judgment and injunctive relief against the Attorney General for the State of New York to prevent any attempt to restrain Arbitron