Podcast appeared a few years ago but it can already be seen as a revolution as far as radio broadcasting is concerned. Most of musical or video contents used to be provided by mass media – such as TV, or radio – but since Podcast broke out people can chose the shows they want to hear/watch. Moreover everybody can easily create a Podcast and broadcasting through the Net. The idea behind the success of podcast is that everybody can choose and provide content. As a consequence mass media are losing the hegemony as contents providers.
Technically a podcast is a file that can be found on the web, that provide audio or video content that can be played on a computer or mobile devices – such as MP3 players, personal phones.
The word podcast refers to the most famous MP3 player on the market : Apple’s Ipod. It is not only the current best seller player but with Apple’s advertisement campaign, it turned into an item that refers to a certain lifestyle - which definitely fits with the imaginary behind podcasting. Nevertheless some purists want to use the name Webcast or Netcast in spite of podcast because it refers to a private trademark even thought the word is not registered by the company.
If you are interested, check the largest podcast database.
If you want to know more about the history of podcasting
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