Firstly, What is a podcast?
Podcasting is a form of audio broadcasting on the Internet. Anyone can create their own podcast and broadcast it to the world in very little time and at very little cost. All you need is a computer, a mic and the internet even add them to your website.
Podcasts really get you noticed. Also a powerful way to connect with your customers and promote your business to them.
Oxford English Dictionary - podcast n. a digital recording of a radio broadcast or similar programme, made available on the Internet for downloading to a personal audio player.
Article to Read - 4 Reasons to Add a Podcast to Your Blog from just a normal person about him adding a podcast to his blog and website.
Podcasts - Why you should add a podcast to your blog