this is the best fiddle lresource i can think of: http://www.fiddle.com/
and the national championships are held here: (in Weiser Idaho) http://www.fiddlecontest.com/
where are yo located? here is the CALIF old time fiddle association
page http://www.fiddle.com/calfiddle/
do yo ever encourage your students to go to festivals and contests and join in the jams that might happen in the parking lots of camp grounds?
this is the best way to experience the music!
is there an fiddler organization or group near you? join in!