"When Robert Walch started podcasting in December 2004, it was a pastime embraced by only the hardest-core geeks.
"It was the lunatic fringe," Walch recalls. "That was before early adopters."
Skip ahead two years. One of roughly eight baby boomers heading into their golden years has downloaded a podcast, according to a new survey by the Pew Internet and American Life Project released last week. These streams of audio, and increasingly video, can be downloaded directly from a Web page or acquired through subscription via software such as Apple's iTunes.
"We are at a crossroads of a major transition in the way media content is delivered," said Mary Madden, a senior research analyst who worked on the Pew survey."
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