Skype's been around for awhile but I haven't used it myself. I think it's probably going to be possible to use Skype to do piano lessons realistically. The recordings now on Youtube, of Skype'd lessons, are useful to consider. Here's an 8 min. segment. This is much more engaging than typical instruction videos because they're live interactions and have a different kind of energy about them in terms of a real life conversation-- rather than a prepared script.
