Skype
So….. you are telling me you have not heard of Skype before? Really? Hmmmm….. well there is this thing called a telephone…. and when you connect to the Internet (you know…. all those pipes…) and someone else connects to the Internet…. (at the other end of the pipes…), if they have Skype installed, you can talk for free….
Now download it already… you know you want to… 
