A “podcast” is a buzzword to describe a very simple concept: an audio or video file available on the Internet for you to listen to and/or watch. A podcast can also refer to a series of these audio or video files (similar to how a TV or radio “show” can be a series of shows or just one show). When using the word “podcast”, most people refer to the entire series and not just one audio or video file. Audio and video files have been made available on the Internet for years. Why is a podcast different?

Break PODCAST down into two parts. First the POD : you can either listen to a podcast on your computer or transfer it to your portable audio/video device, which means that file is P ortable, and it's O n- D emand because you can listen to or watch it when you want, where you want. The CAST means the file is sent out to you over the Internet, in the way a “broadcast” comes to you over the radio or TV airwaves. But instead of using a radio or TV, with podcasts you use a computer connected to the Internet, and on that computer you have a program that allows you to subscribe to, manage, and listen to or watch your favorite podcasts.
Follow the RSS feed to download the podcasts.
Follow the itunes icon to subscribe through itunes.