Limelight says PodShowPDN provides a complete set of tools for creating, publishing and uploading content, with the scalability to deliver and track tens of thousands of shows, millions of episodes and hundreds of millions of downloads.

According to Limelight, the service is arriving just as the popularity of podcasting is beginning to reveal weaknesses in the traditional means of management and delivery, and as the medium is beginning to present mainstream media companies with new opportunities to expand their reach and find new distribution and marketing opportunities.

"Podcasting is much more than MP3 files on a server - it is a unique environment requiring a combined skill set and awareness of media development and production, as well as guaranteed content delivery," says Bill Rinehart, CEO, Limelight Networks. "Our partnership with Podshow, which combines these key elements with Limelight's advanced network - the world's highest performance delivery network for digital media - creates a powerful podcasting solution for both individual podcasters and for media companies."