S G ,may have got a lot of people interested in the song by popularising it,who would not otherwise have heard it.
Sometimes,through hearing other versions,and this is where youtube is so handy,they can hear more authentic or closer to the tradition versions.
Jim,there is an audio site called Sound lantern.
you could put some recordings of traditional singers up,you believe in sharing the music and have criticised the revival for being money orientated,there would be people on the site such as myself,who would be interested in hearing your recordings,a chance for you to share the music for free.
Steve.thats a subject,that deserves a thread of its own ,join mudcat and you can start a thread,right now I am off to play some music.