Talking about the advantages of PodCasting, I believe it has three great strengths: low cost, worldwide and automatically. First of all, the teachers can create online lectures with their own devices such as laptop and a set of micro and earphone. Furthermore, they don't have to pay too much for the maintaining fee. Second, PodCasting is like the teacher can make their own radio channel, and everyone all over the world can listen to their lectures. Basically, it will remove the barrier of distance. Last but not least, it works totally automatically. The software will download the content, including audio/video files or new posts, to the users' devices, and these contents will always ready to be used, even when the users have problem with connection because all of them were downloaded before. Additionally, the schools can utilize PodCasting as a new and convenient technology for students to keep track with announcement and syllabus.
To learn more about PodCasting:
http://oreilly.com/digitalmedia/2005/07/20/WhatIsPodcasting.html
http://en.wikipedia.org/wiki/Podcasting
https://www.podomatic.com
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