This study compares the radio news broadcasts of numerous radio stations (CBS, CNN, AP, NPR, VoA, BBC) to find the differences between the different modes of station operations.  Commercial and public stations were found to miss certain international news items

This book traces international radio with a focus on comparing journalistic practices.  (More to follow).

Crisell outlines the signs used in radio, necessarily auditory due to the format.  He palces special emphasis on words, sounds, music, and silence.  Relevance and symbolism shape the medium, with various signals to aid the listener in understanding the programming.

This book is a collection of articles, lectures, and addresses on British Radio drama through individuals like Henry Reed and Samuel Beckett as well as a general overview of the genre since 1960.

This article addresses the formative time for radio broadcasting, addressing such disparate aspects as news coverage and the radio drama in Britain and America.  In the section devoted to radio dramas, Camporesi identifies a perceived difference in attention span between the two countries, with American dramas being much shorter than their British counterparts.  Almost all materials imported between countries had to be modified to adjust to differing tastes.

This comprehensive book includes an overview of the history of the radio drama industry with special emphasis placed on technology, leading up to internet audio dramas.  The book explores the writing style as well as current trends in radio creation and form.  It also includes a timeline of the technological advances related to the genre.

This Variety Article on August 21, 2005 discusses the podcast drama for "My Heart Split in Two", which releases a 10-minute podcast segment every week in addition to the live theatrical performance.  Brenda Withers notes that podcasting provides the advantage of a time shift so viewers are not forced to listen at specific times.

Claiming to be the longest running radio drama (starting in 1950, one year before BBC's The Archers), Unshackled is a Christian radio program based out of Chicago broadcast internationally. 

Scott Sigler released his novel Earthcore (as well as his new podcast novel Ancestor) as a podcast before releasing the print version of the novel.  The fifty-five chapters are available for download on the site, as well as information about other podcast novelists.  New chapters started to become available in March of 2005 and continued until August.

This website was the focal point of an extended viral marketing campaign produced by 4orty2wo Entertainment for the promotion of the Halo 2 video game.  The site hosts the 10-hour audio drama created in conjunction with the campaign.

This article traces the relatively short history of podcasting as well as exploring the potential as it is becoming compatible with some phones.  Advertisers are now sponsoring shows similar to the way radio used to work.  Since the format requires stripping the podcasts of all dated material, it becomes ideal for talk shows and radio dramas.

The podcast network is a resource for people engaged in podcasting, a technology briefly explained on the website that involves users of Apple's iPods downloading periodic shows for later viewing.  Included on the network are two New Zealand radio serials released under a Creative Commons license, Claybourne and Ashleys World (verification found at the blog http://blogs.oldradio.net/archives/2005/01/10/ashleys-worlds-a-radio-serial/).

Shoestring Radio Theatre is a nationally syndicated radio drama program based out of San Fransisco that produces 24 new half-hour shows a year.  The website includes a list of air times, press regarding the program, and a link for submitting scripts.

In this November 4, 2004 New York Times article Noah Shachtman discusses the strong appeal of Halo 2's viral marketing experience called "I Love Bees".  In it, internet users followed clues and solved puzzles to locations across the United States to gain access to a 10 hour audio drama (now located at ilovebees.com/humptydumpty.html).  The interactive element of the game increased with time, and listeners could have live conversations with "Melissa", an enigmatic character in the drama, after successfully solving some puzzles.

Aired on BBC7 Saturday November 19 starting at 9AM, this three hour program rebroadcast selected episodes of the classic BBC Radio hit Dad's Army along with commentary from the two men responsible for transferring the program from television to radio.  In addition to airing the episodes, the pair describe their production schedule, the challenges in adapting a radio play, and other minutae regarding the show.

The XM Radio homepage provides information on the pricing, content, and functionality of the largest Satellite Radio broadcaster in America.  Two channels include Sonic Theater and Old Time Radio, specializing in radio drama content.  XM Radio follows a monthly payment scheme to fund the numerous commercial-free stations it offers.  XM Radio is experimenting with a partnership with Napster.

The homepage of BBC radio offers information on their extensive radio programming on 10 different channels, as well as specific information on DAB Radio, a digital form of broadcasting utilized in Britain.  The site allows for live streaming of any of their stations as well as a 6-day archive of previously aired radio dramas ranging from Shakespeare to Doctor Who.

This June 19, 1998 Wall Street Journal article by Joanne Kaufman discusses a supposed American radio drama renaissance, with quick three to five minute blurbs interspersed in commercial radio.  Mr. Gonshack explains the shortcomings of NPR drama broadcasts as well as the advantages of the shorter format.

In this October 9, 2003 New Media Age blurb Nigel Sheldon discusses the BBC radio drama "Dark House".  The program was interactive, with dialogue decided by voting via phone or SMS.  In addition to the interactive storytelling "Dark House" used a binaural recording technique, with microphones placed near the actors' ears.