Here’s a website by Voicethread.com that offers "Group Audio Blogging." Now that’s cool.
Voicethread is enabling users to create "VoiceThreads" much the same way a blogger would create a post or a page on a social networking site. A VoiceThread gives the distinct benefit of recorded group conversation which can be added to blogs, social networking websites and personal websites or hosted free of charge. More information on Group Audio Blogging is available at http://www.voicethread.com