The makers of KaZaA are back with another earthshaking peer-to-peer application: Skype, which lets you bypass the telecommunications system and talk for free with your friends (at least, those friends who also have Skype).

Voice over IP (VoIP) has been talked about for a while, but no one has done a good job at it. It seems that Skype may have solved some of the tricky issues, although I haven't actually tried it yet. (I'm trying to figure out if the Skype download comes with spyware, in which case I'll pass)