The creation of YouTube and the podcast have changed many aspects of our lives in how we operate, search, relax, and take care of our general business. They have begun to be an essential part of our lives, and have even literally become peoples lives by providing income and other benefits through wildly popular podcasts and YouTube videos like Grammar Girl.
Defining how Youtube and podcasts are writing bring us back to how communication and writing are becoming more oral in this cycle that we seem to exist in. It presents people with a new variation of how they are recieveing information and getting news and other things that drive your life.
Writing for video and podcast is probably different in a few ways. I personally think that the 2 column approach is more approriate for video because you know both what you are seeing and saying using that type of style. I do not think that form is necessary for podcast since there is no visual involved. The single column approach I think works in that situation best because it would cause less confusion.