I have been posting the following on Google+ for the past couple of days:
"I would like to find other classical musicians who would be interested in playing chamber music in a Hangout! We can arrange the time beforehand, and figure out the instruments that way. We can find the music on IMSLP (http://imslp.org/wiki/).
People who are not musicians could then join the Hangout to listen. We could even do this more than once/as a regularly scheduled event/whatever.
If you are a classical musician, let me know in your answer. I am a flutist. We could have lots of different chamber group combinations."
Several musicians have indicated that they would be interested in playing, and lots of people want to listen! So there definitely is interest in this!
I want to find even more musicians, so I hope that if you see this you will want to get involved! If you are not yet on Google+, let me know, and I will send you an invite!
For those of you who aren't familiar with Google+ Hangouts, up to 10 people can be connected at a time. No software is needed; all you have to do is have a Google+ presence, and you can join or initiate a Hangout.