Source: Xappmedia [download page]
Notes: The average hour of internet radio included 2 minutes and 29 seconds of audio ads in Q4, reports Xappmedia, up close to 6% from Q3 but down from the year-earlier average of 2 minutes and 44 seconds. The averages mask differences among the 5 publishers examined, with the top 3 by ad time averaging roughly 3 minutes per hour in Q4 and the bottom 2 average 1 minute and 39 seconds. (more…)