This list of links will grow ...

The Hardanger Fiddle Association of America - -  The center for those
interested in the Hardanger Fiddle on this side of the Atlantic.  Buy strings from them. - In Scotland.  A nice site about "Scottish, Irish, and World Music" - Everything from a Skylark to a Strad. - So Musical!  The definitive Music Directory. - The Guild of American Luthiers. - "Your one-stop destination for anything you can think about violin" - Johnson String Instrument: violin, viola and cello sales, rentals,
strings and accessories, plus sheet music, and much more.