Kazaa enabled people to share music files but it also let people share videos and programs as well, which made it very, very popular. Kazaa, in case you don’t remember or have never heard of it, was a peer-to-peer file sharing program used by millions of people in the early 2000’s just as Napster was getting shut down for enabling the illegal sharing of music files. But unlike buying a human writing machine like yours truly at an affordable price, Microsoft is paying $8.5 billion for something called Skype. Not to get too personal, but that’s many, many billions more than I make in a year. Follow just bought Skype for $8.5 billion.