This is kind of interesting. On January 25 (that's tomorrow!), the Chicago radio station WSCR 670 The Score will make history with the first-ever live multimedia Webcast of a radio show in Chicago. A multimedia company called Nology Interactive will be producing the event encoding it with Windows Media technology and broadcasting it via Business Only Broadband.
I could actually see this becoming the future of many radio stations, with web streaming technologies and broadband connections becoming far more widely used.