AndoMedia has released its monthly ranker of listening estimates to Internet radio platforms that are measured by Webcast Metrics, which uses a proprietary platform to track audience data and convert it to audience metrics that can be easily understood by stations, publishers and advertisers.

For Domestic total week listening, Pandora’s audience continues to rank first, followed by CBSRadio’s online radio platform, which includes all its streaming broadcast stations as well as AOL and Yahoo Launchcast (but does not include CBSRadio-owned Last.fm). Clear Channel, Citadel, Entercom, Cox, EMF, ESPN and Radio One round out the top ten online radio platforms on the domestic ranker which counts only verified US based listening.

The All Streams ranker, which counts all listening to an online group or station’s streams, shows some stations that are not providing location verified listening data. Big online brands Digitally Imported, 977Music, 1.fm and AccuRadio push some broadcaster based platforms out of the top ten in this ranker.

AndoMedia points out that this month the average number of listening sessions, sessions started and time spent listening all increased. More info and the actual rankers are available here.


Webcast Metrics All Streams M-Su 6a-12m Feb 2010

Source: Audio4Cast