A podcast directory is a listing of syndication feeds that
link to a podcast. They are often organized by category
and topic, and allow the user to find a feed that podcasts
about almost anything. Just as search engines help
people find sites with the information they need, a
podcast directory presents a searchable list of podcasts
users can subscribe to. [...]

While some video feeds can be found by visiting the
site that hosts them, many more are easier found by
visiting a directory of podcast videos. These podcast
video directories maintain listings of podcasts that have
been submitted to them. They may sort the list
according to region, category, and popularity, helping
visitors find exactly the type of feed they are [...]

Many music podcasts are available online, distributed
by podcasters who want to share their collection with
the world. Some of these are distributed by independent
musicians, groups or individuals who enjoy creating
and sharing their music but have a small fanbase. For
them, a podcast means closer contact with their
listeners, and the blog that usually accompanies a
podcast often allows for [...]

The podcast for This American Life allows listeners to
download the the shows and listen to them at their
discretion. The This American Life team contracts with
a site called audible.com to distribute the shows to
listeners who want to hear them. Despite calling their
offering a podcast, however, it is not, at least in the
normal sense of the word. [...]