As my business has grown globally, SKYPE has become a low cost/free option when making calls to remote (from the USA) areas like Vietnam.
I have gone through numerous GoToMeeting, and other screen sharing websites,paying exorbitant money with my clients struggling to log in and hear me. I came to rely on the file sharing and screen sharing features. When talking to potential and current clients, I could share my screen and show them real time examples and resources as we talked.
SKYPE's file sharing and IM features quickly transferred data during and in between conversations while keeping a history of all exchanges. Each client contact's profile became a centralized place to maintain a history of what data has been exchanged and content shared and when. Adding on apps enables me to record video and audio calls as well.
Certainly that all adds up to a client tracking and management system and I have come to rely on it for all my clients not just those off shore. But what is the most interesting is how much more accessible it is to be able to drop a random IM message in somebody's chat box while in SKYPE to engage with someone else.
It makes keep up and staying in touch a whole lot easier because it keeps of history of what you sent and said most recently. I don't know about you but I can't keep the onslaught of data coming at me in short-term memory anymore.