What is it? A podcast can be thought of as a blog presented in
audio or video format. Instead of blog text entries, podcasts
use downloadable audio or video files. In the same way that you
can subscribe to a blog and receive regular text updates, users
can subscribe to podcasts and download audio and videos files
when content is updated. Both blogs and podcasts use the same
technology to update their content. The technology used is
called RSS - which stands for really simple syndication. RSS
allows content to be pushed out to subscribers without users
having to go and check for updates. This makes organizing a
tremendous amount of data really easy. Just about as easy as
subscribing to a magazine, subscribing to a podcast allows the
user to receive the latest content automatically. Where do I
find podcasts? is a collection of over 350,000 educational
podcasts from over 800 universities around the world and is
accessible as a part of the free, cross-platform iTunes software
. CMU has been on iTunes U since 2006