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Pandora Tops Ando Media December Rankings

Ando Media Releases December Internet Audio Top 20

February 24, 2011 – Ando Media has released its monthly Internet audio top 20 rankers for December. The Ranker is a listing of the top performing Internet audio stations and networks measured by the Webcast Metrics® audience measurement platform.

Pandora topped the list with 355 million session starts. A session start is the number of different requests for streams of at least one minute. CBS Radio received 65.5 million session starts, Clear Channel 40.5 million, Slacker had 20 million and Citadel 11 million rounding out the top 5.

When examining the numbers from average active sessions, the same companies are in the top 5, Pandora (543 million), CBS Radio (115 million), Clear Channel (90 million), Citadel (28.5 million) and Slacker (26 million). An average active session is determined to be total listening hours divided by hours in the reported time period.