The combined audience of the Top 20 webcasters in Triton Digital’s Webcast Metrics for June 2011 is up 27% from last year, according to results released Tuesday and reported by Kurt Hanson's RAIN.
Presumably Slacker, too, would show impressive growth over June 2010, though they were not tracked in Webcast Metrics until July 2010. Slacker has grown 131% since July 2010 (though some of that was due to Triton Digital gradually incorporating the webcaster’s mobile audience).
Several broadcasters grew their online audiences year-over-year, too, with Emmis up 24%, Citadel up 19%, and Radio One / Interactive One up 8%.
Most month-over-month growth came from the pureplays. In the Domestic Mon-Sun 6a-12m daypart for June 2011, Slacker showed 7% growth over May 2011, AccuRadio 4% and broadcaster Greater Media 3%. Meanwhile, 977Music.com recovered after falling sharply in April and May.