Podcasting was originally mentioned in 2004 in a Guardian newspaper article and it is a mixture of the words pod (developed from the iPod) and broadcasting. Podcasts are media files that are in digital form and can be either video or audio.
These podcasts are usually released on a frequent basis and can be downloaded via the Internet. But in a podcast has been downloaded it can be listened to offline as the file is stored on the computer it has been downloaded to. While podcasts are not always used as a direct form of marketing they can be useful for creating customer loyalty as listeners look out for new episodes.