The other day I posted some thoughts about where we are heading with both our podcasting and the iTunes U projects here at Penn State University. I haven't gotten comments (other than 1), but I have gotten some email from people asking more about some stuff. One of the items we immediately set out to answer was the private and public content in the same iTunes U instance ... we discovered that thankfully you can do both from one space!
As an example, if you jump over to Duke University's School of Business you'll see something interesting ... when you click the link to launch iTunes U you'll notice you come into the site a couple of steps down the breadtrail. If you try to follow the breadtrail back out to the "main" Duke iTunes U space you are kicked back out the web to authenticate with your Duke credentials. That is very cool. It makes our lives on campus so much easier -- we get to run one instance and expose some materials we'd really like to share widely without putting our private content into the wrong hands. So, there is one question answered.