well said a while ago)Jon! Publication is about the only way to get through to the wider community, surely. We can sing to ourselves until we drop off, but I'm reminded of the Stevie Smith poem about the monk who buries his life's work... we've got to reach people who don't know of folksong's virtues. It may inevitably lead to some rather stilted versions of songs performed by those trained in conventional performance of the written note- who among us actually sings what the score suggests every time?
Re worksongs- the Sing London site has 8 songbooks from across the country in which 12 songs per area can be found. Some well known, some not. Downloadable pdfs and teachers notes too. For teachers an acessible resource, along with the new EFDSS websites.
Half the battle is encouraging adults to sing, and not just repeat stadium anthems!imho...