You're new here, Sue, and won't know that Bruce died some years ago; this is an old thread, revived this time by some spammer. [spam deleted]

Bruce's website disappeared from its original location shortly after his death. It is archived both at the Mudcat and at California State University, however:

http://www.csufresno.edu/folklore/Olson/
http://www.mudcat.org/olson/viewpage.cfm

Not an easy read for the beginner, but an absolutely invaluable resource to anyone who is genuinely interested in the history of what we now call folk song.