Podcasting ?

The more I learn, the more I am amazed at what is available out in the BIG World Wide Web. As I checked out Mediafly and Podcast it became just another site to subscribe to. That part is getting to be hard to keep track of and a little discourging. There does not seem to be anything NOT on the Web these days and will require vigilant staff. I was expecting the ease of YouTube for searching and watching. It was much easier at Vodcast to subscribe( you did not have to subscribe) by URL to an interesting site: Jean-Michel Coustea on PBS as he discovers the depths of the ocean.
http://www.pbs.org/kqed/oceanadventures/rss/media/arcticanimals_ipod.mp4
It will be more challenging to small libraries to try and keep computer users from going to inappriate sites as they explore podcasting. They do not have staff just to watch patrons use the computer. It will involve a lot of trust between library staff and patrons.