“The number of people who download free serial audio programs, or podcasts, is set to explode over the next few years, according to a new report,” Alorie Gilbert reports for CNET News.

“Researchers at The Diffusion Group predicted this week that the U.S. podcast audience will climb from 840,000 last year to 56 million by 2010. By that time, three-quarters of all people who own portable digital music players will listen to podcasts, up from less than 15 percent last year, the digital entertainment research group said,” Gilbert reports.

Full article here.

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