Podcasting has gone from personal to business and back to personal again. Companies are using podcasting to provide consumers, shareholders, and the media access to important audio and video data while consumers are using podcasting to broadcast their talents, vacations, or rants to the world. One great tool too help in creating audio files that can be used in podcasts ("podcast" is such a nasty term that gives too much free advertising to Apple — netcasting is a better term) is called Audacity. Audacity is free, open source software for recording and editing audio and is available for Mac OS…