To begin with, iTunesU was created for colleges and universities, but now teachers k-12 can create courses by signing into their Apple ID.  I love this idea because teachers are able to take their classes online.  If students are absent they can go to their iTunes U class site and learn what they missed.  Although some iTunes U accounts need the student to be enrolled to receive credit, other classes enable them to watch the videos and learn the information without signing in to an account.  More than anything I love the idea of iTunes U for gifted and talented students.  It enables those students to go above and beyond what they are learning in the classroom.  It enables them to further their education and learn things that interests them. 

Another thing I really like about iTunes U is that it is easily accessible and categorized nicely.  It is very easy to navigate though.

Podcasting with iTunes U-

Many students have iPads, iPods, and/or iPhones.  Teachers and professor can record their daily lessons/lectures, and students can review and relearn important concepts.  iTunes you gives students the chance to learn listen to podcasts on the go.  They can study with podcasts at home, during a work break, or even on the bus ride home. 

Education is no longer just books and chalkboards. Instructors are able to link websites, assignments, videos, etc. to make their class complete.  iTunes U takes learning to a whole new level, and it makes the world a community of learners.  No longer does an instructor need to feel alone in their teaching.  They can pull from other sources and resources from around the world.

Individual Pur
I think the best way I can use this in my field is by showing other teachers the possibilities of iTunes U.  Even if they do not post materials or build their own class in iTunes U, they can still use materials that have already been shared.  The k-12 section has many useful materials for teachers.  I have had a few of the speech pathology teachers ask me how to use an iPad with their students.  iTunes U has an area specific to speech pathology.  I could show them this resource and let them find stuff they like.