I just made this recommendation to a friend who will be going on leave shortly and won't be able to travel. In addition, her region has recently expanded to include the entire state. Running up and down the road constantly was running her ragged.
So it occurred to me that she could use Skype to deliver her presentations remotely. All her clients need is a microphone, speakers and Skype downloaded on their computers. They don't even have to have a web cam...I don't think.