I know nothing about playing guitars BUT this guy explains, very clearly, what to do, what not to do, and more importantly WHY. It's important to know 'what not to do' in order to further learn 'what to do'.. in anything. I would recommend that any/all beginning guitar players refer to this guy.
For me, this is perfect. I only have a few minutes every day to play my guitar, and Vogel's instructions are easy to follow. I sometimes wish he would go even slower, and then I remember I can play the whole lesson through as many times as I want. Keep the lessons coming; they're invaluable.