One podcast creator has been left baffled by the popularity of his show, which he wasn't aware was being pushed by Apple in its iTunes podcast section.

Brian Reid's podcast called Sex Talk focuses on one of his passions: gender issues. He admits that its name, and its unwarranted explicit label, could be the reason for its popularity.

Reid's podcasts touched on such sonorous topics as the Roman Catholic Church's stance on female priests, but he gave up back in April when his audience failed to grow beyond a few subscribers, writes Wired.

"So imagine his surprise when, during the first week of July, Reid got an e-mail from an Australian reader of his blog congratulating him for having the 53rd-most-popular podcast on iTunes," writes reporter Steve Friess.

This left folks like Reid scratching their heads, writes Friess. "Reid has no idea how his defunct podcast ended up listed in the iTunes directory - and with an "explicit" label no less."

Apple's failure to inform the creators of podcasts that their work would be available on iTunes may have bought fame to many online audiocasters, turning them into overnight sensations, writes Friess. But it has also crashed servers across the nation with new Internet stars having to fork out cash to Web space providers to match the popularity of their shows.