I noticed a few people mentioning (can’t seem to find the posts now) that having one’s podcast listed in the iTunes Podcast Directory could potentially lead to a surprising increase in bandwidth due to greater exposure/downloads. If you are hosting your own podcasts, one tool that could potentially reduce bandwidth costs is a new open source P2P tool called Dijjer.

I haven’t got a chance to use it, but it seems to work somewhat like Bittorrent, and the setup is a breeze.

You don’t need to install anything. Just put a file on your site as you normally do, but add “http://www.dijjer.org/get/” to the beginning of your links:

normal link: http://mysite.com/video.mov
dijjer link: http://dijjer.org/get/http://mysite.com/video.mov

For Dijjer to work, people must have a Dijjer client running on their machine (available for Mac/Linux/Windows). Therefore, the bandwidth is distributed across Dijjer users. However, to download a Dijjer supported file, a user doesn’t need to have the client installed.

Sounds interesting, I wonder if it will get the network support it needs to be successful.