I see your point, Peter, but I think that a folk song Wiki would be better suited for a folk community like this one - individual folk songs are likely to get lost in a huge undertaking such as Wikipedia. Also, because of the high visiblility of a Website like Wikipedia, I wonder if there are copyright concerns about posting lyrics.
Arran asks why I haven't started a folk song Wiki, and I have to say that I don't have the time just now. Still, it's a good idea. Since it's a cooperative effort, it's a big improvement over my DTStudy experiment, which attempts to consolidate information we have on songs.
Jon Freeman has done very well with his folkinfo.org.

-Joe-