If you live in a remote area and would like to do lessons via Skype online, I have found this is a good way for me to teach students who can't drive to one of my studios. I can still see my students via webcam, and they can see me. I can still offer feedback and help them w/ auditions, and improving their playing.
Also, I offer SmartMusic lessons. If a student has the SmartMusic software from www.smartmusic.com, I can assign them songs on the computer. They can record themselves playing the assignments, and email them to me for feedback.
If you are interested in either of these options, please contact me for fee information.