Mercora, presenting at Demo Fall, is showing off its IMRadio service. You download the client, build playlists and public folders, name your radio station, and start streaming. Share music among friends, "legally."  

Would you like to have these features be part of Skype? Or the network with your biggest list of buddies? Skype's brand as the leading voice-talking client could be part of a bigger meme: conversation with a shared experience. Like listening to music together, watching TV, barnraising in Second Life, reviewing an internal audit, or playing checkers. Together.

Most of the technology is in Skype now. So it's a marketing focus question. Does this build on Skype's core brand notes? Could it help US consumers try Skyping?

What other businesses are adjacent to Skype's? I keep coming back to labor markets, so more on that next week.