Here I have collected some interesting links for you:

musicians Guitar Duo KM, a worlclass duo!
Jacq Dorn a very versatile guitarist and teacher from Reutlingen homepage of the chamber music projects of Oliver Fartach-Naini, Berlin


Linklists, Portals

Guitarnation Also a pretty nice portal, links to many luthiers also vast adress-database to musical life in Germany
Musikinformationszentrum: Very versatile adress-list to anything around music


Societies, institutions

Gitarrenfestspiele Nuertingen one of the largest and high-carat guitar festival not only in Germany.
Gitarrensymposium Iserlohn Also a very large and well established festival organized by Th. Kirchhoff


Luthery, wood, technical matters

Spanish guitarmakers the “who is who” of historic Spanish lutherie
Musical Instrument Makers Forum Discussion-forum about matters of instrument making