What is a fanlisting? Well, it's exactly what it says it is! It's a place for fans of one particular subject to come together and create the largest list of fans around the world for that subject. In this case, it is fans of podcasts. This fanlisting is approved by The Fanlistings.org.

From Wikipedia, which explains it better than I could: Podcasting is the method of distributing multimedia files, such as audio programs or music videos, over the Internet using either the RSS or Atom syndication formats, for playback on mobile devices and personal computers. The term podcast like 'radio', can mean both the content and the method of delivery. The host or author of a podcast is often called a podcaster. Podcasters' web sites may also offer direct download or streaming of their files; a podcast however is distinguished by its ability to be downloaded automatically using software capable of reading RSS or Atom feeds.

Usually a podcast features one type of 'show', with new episodes released either sporadically or at planned intervals such as daily or weekly. In addition, there are podcast networks that feature multiple shows on the same feed. Click here for the complete Wikipedia entry.