Research firm eMarketer has released projections of what the future podcast audience might look like, in size at least. Citing the portability and "...anywhere, anytime" aspect of podcasting as catalysts for continued growth, they expect to see numbers around the 80 million mark for active listeners by 2010. Wow.
Of course, this can only mean advertisers will become interested, creating more podcasts. It's a runaway train.
[Via Micro Persuasion]