Wow that's a nice list! It would be even nicer to have some clear indicator for each course whether it is free as in beer, or free as in freedom (openly licensed and downloadable).
For example all the iTunes audio courses say "This course material is only available in the iTunes U app on iPhone or iPad" so limited as to whom can access.
That some of these courses are only available over iTunes really makes me wonder what the institutions that make this content available only over iTunes are thinking.
Surely they realize that not everyone uses iTunes, and putting the content in a walled garden would not make it as available as putting it in a downloadable, open format on archive.org? Or do they just not care?
Well the video plays for me with SMPlayer, but not the audio. Some .rm files play audio fine. The video quality of these is pretty low though, so hopefully they have a higher resolution master to work from.
For example all the iTunes audio courses say "This course material is only available in the iTunes U app on iPhone or iPad" so limited as to whom can access.