Arbitron announced Tuesday (Nov. 4) that it was moving up the PPM commercialization date for four markets, Kansas City, San Antonio, Salt Lake City and Las Vegas. These markets are now scheduled to commercialize with the December 2009 PPM survey report (Nov. 12 to Dec. 9), which will be released on Dec. 31, 2009.

Arbitron had planned to deploy the PPM ratings service in these markets with the release of the March 2010 PPM survey report. The last diary-based audience survey for each of these markets will be the summer 2009 survey (June 25 to Sept. 16).

Meanwhile, five other markets -- Milwaukee, Charlotte, Columbus, Providence and Orlando -- will now commercialize with the release of the September 2010 PPM survey report in October. They had been slated to commercialize with the release of the June 2010 PPM survey report. The last diary-based audience report for these markets will be for the spring 2010 survey (April 1 to June 23).

The updated PPM commercialization schedule is available here.