A podcast is an audio file composed primarily of spoken words, often reminiscent of a radio program. Podcasts can cover any and all topics, and have grown popular as a means to quickly disseminate content, editorial, or interviews with much less work for the creators than typing up the material into an article.
Gaming podcasts have become quite common and popular, and there are several active podcasts centered on Diablo III. Blizzard Entertainment semi-regularly posts their own podcast, BlizzCast, which generally features a developer interview along with discussion of one or more of their ongoing game development projects.
Diablo Podcasts
Listing updated in May 2012, with several new podcasts added.
The Diablo Podcast, (TDP), is hosted by Flux, and is a a production of The Unofficial Site, Diablo.IncGamers.com, formerly Diabloii.net. New episodes are posted weekly (or more often) at DiabloPodcast.com. The format varies from show to show, but generally features some discussion of current Diablo III news, indepth discussions of game features, along with regular interviews with members of the Diablo community, as well as prominent RPG developers such as Max Schaefer.
The Worldstone Keep podcast covers the Diablo community, with a focus on lore and artwork. Episodes are posted at TheWorldstoneKeep.wordpress.com.
Shattered Soulstone -- Nevik, Breja and Jen bring you news, discussion, history and stories from their times in the world of Santuary past and present.
Diablo off the Record -- Join the hosts, Evarwyn, David Adams and Liz “Mistress LeBeau” Jurgens as they discuss Diablo 3 official and community news, classes and skill trees, lore, week in-game, hardcore characters and even the franchise as a whole from past to present!
DiabloCast is produced by Force Strategy Gaming. Force covers all Blizzard titles, and turns out regular news videos, with occasional podcasts as well.
The Elitists. A Blizzard-focused podcast starring Tristan Johnson and Andrew McGowan. Episodes specifically focused on Diablo can be found here.