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Chances are you’ve heard one of these terms while surfing the web.  All three terms are generally the same thing with slight difference in them.   If you want to listen to someone talk about something specific in the news, or hear a debate you might find these terms very useful.

Videocasts and Podcasts are very closely related in the way they are downloaded or streamed, the main difference is that a podcast is usually just audio, like a few people discussing a particular topic.  A videocast woud be a video of the same topic allowing you to see the people discussing the topic.  These types of “casts” can be downloaded to an ipod or similar portable media player and listened to / watched at a later time or they can be streamed right form the website and you can watch it as you surf other webpages.

A webcast is a simulcast video produced by some of the bigger television networks such as BBC, CNN, and the others.  It uses the same technology as videocasts and podcasts but is mostly streamed at the time of the webcast.  Streaming means the video is broadcast in real-time, just like watching the news live instead of  watching pre-recorded footage.

A good tech site that has some podcasts and videocasts is: This week in tech.

Now remember you don’t need an ipod to listen to a podcast, although it would allow you to take your podcasts with you anywhere you can bring you ipod.  All you need to do is make sure you have some sort of media player on your computer such as windows media player, or Winamp.

As always you can always go to Wikipedia and type in any term you read here and you will get more in depth information on the topic.  Wikipedia is a user submitted internet encyclopedia for those of you who don’t know.