Folk dance and music resources:

Gauverband Nordamerika
Trachtenverband Bayern e.V.
Austrian Dance Server (Rudolf Lidmila)
Austrian Folk Dancing (Roland Bauer)
Austrian Folkdance Archive (Mario Herger)
Deutsche Volksleider / German Folksongs (Frank Petersohn)
Deutsche Volkslieder / German Folksongs (Richard Kopp)

German Bands:

Bernie's Orchestra