Arbitron has announced a deal with Adswizz which signals their intention to return to server based streaming audience measurement.
Read more here :
[AUDI4CAST] http://audio4cast.com/2011/10/27/arbitron-partners-with-adswizz/
[RAIN Newsletter] http://www.kurthanson.com/news/arbitron-partners-adswizz-measure-streaming-radio
[RADIO-INFO.COM] http://www.radio-info.com/news/arbitron-explores-online-measurement-with-adswizz-new-growth-for-out-of-hom