Cordedrago has decided to create a forum on gut strings and in general on strings made with historical criteria, obviously open to all and to all opinions:
http://cordedrago-corde-in-budello.forumfree.it
Other forums related to early music, with particular reference to string issues (suggestions on other important discussions not listed here are accepted; however, we reserve the right to implement the list in time):
http://youkulele.com/forum/hospital/corde-di-budello-hanno-senso/
http://liuzzivito.blogspot.it/2011/11/corde-contrabbasso-double-bass-strings.html