SIMPLE….. it allows you to make calls from one computer to another, anywhere in the world, totally free of charge.  Now that should be VERY attractive, especially in this economy that has yet to totally recover.  I myself have been using Skype for a few months and will be using it more now that fellow colleagues/friends/family are getting in on this act.  Is Skype just for making phone calls you may ask??!  NO, not only does Skype allow for voice communications but it is used for video (with the addition of a Webcam).  Many newer computers, particularly laptops, have the webcam, microphone, and speakers built in for just this purpose.  Ever go to one of those FedEx stores to video conference?  I did and it was plenty expensive.  At least with Skype you have another alternative.  The Cons?!?  Well, it isn’t a suitable substitute for regular phone service, nor does it pretend to be. From a safety standpoint, it’s important to know that Skype CAN NOT be used to make emergency 911 calls.  Other free services on Skype include: transferring and forwarding calls to others on Skype, instant messaging and group IMs and conference calls.  Give it a shot; I did and it is worth the hype!