Carlin is one of a raft of entrepreneurs reinventing a medium long judged a money pit: Web radio, or podcasting. Some of them have broken into the mainstream. Satirist Marc Maron, for instance, has appeared on Comedy Central and is a frequent guest on Conan. Others, like The Nerdist Podcast, mine subcultures for show topics. And many are hosted by comedians seeking new outlets, including Adam Carolla and Jason and Randy Sklar, whose program Sklarbro Country is essentially sports radio with jokes.
The most successful hosts are even giving traditional media a run for their money. Carlin's most recent history broadcast, for example, was downloaded more than 40,000 times by fans within the first hour of its release. Considering that some prime-time networks draw in a few hundred thousand viewers a night, it's not hard to see why the medium is getting another look.
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