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Blogtalkradio lets anyone create an online radio talk show using a computer and a phone. Listeners can call in and participate in the conversation on air. Past shows are archived as podcasts and can be downloaded or streamed. 

Blogtalkradio's mobile site lets users search for and listen to the achieved shows.  It does not appear to stream live shows to mobile or allow broadcasters to conduct a show using only their mobile phones.

Listen to live audio streams from hundreds of U.S. police and fire dispatch radios. Source Oh! Mobile Directory

Huge categorized and searchable podcast directory with links to over 10,000 feeds. Each feed offers multiple podcast episodes as .mp3 downloads.  Mobile view by Mobify

Live audio stream from San Francisco public radio station KQED-FM.  Broadcast schedules for KQED-FM and KQED-TV.

A small directory of streaming Internet radio stations in streaming http MP3 (aka Shoutcast) format. Few if any phones support this format natively.  The site has links to Palm OS and Windows Mobile players. Source Oh! Mobile Directory

AudioBoo has apps for iOS, Android, Windows Phone and Symbian as well as mobile and desktop websites.  The apps integrate with the device's voice recording capability allowing you to create and publish audio clips, called "Boos" with a single click.  You can optionally include an image with your Boo.

Boos are published on the AudioBoo web and mobile site and there are lots of ways to share Boos and add them to your mobile or desktop site.  Options include an embeddable player, WordPress plugin, Facebook app or a link you can email, add to a Tweet or put on your mobile or desktop site. Fire hose affectionatos can subscribe to all Boos from all users as either an RSS feed or as a podcast in iTunes.

As a mobile blogger and publisher the most interesting part of AudioBoo is the ability to link directly to a Boo.  The now dormant mobile blog The Really Mobile Project, used AudioBoo extensively to publish interviews and podcasts.

Searchable directory of downlaable .mp3 podcasts. Source Oh! Mobile Directory

Directory of mobile streaming : independent & alternative radio stations in 3GPP and Windows Media formats. Source: My Opera, hat tip to Serola.

Free online Internet streaming Rock radio. "Hand mixed by real humans at Radio Paradise." Radio Paradise is the first fultime internet radio station started in 1990 by veteran DJ Bill Goldsmith (KFAT, KLRB, KPOI, WCAS, KPIG).  The station is available in a variety of mobile formats.