|Austrian Folk Dancing||http://www.fff.at/fff/dance/org/index.html|
Please see my remarks on other information providers
Not all ;-) of the Austrian folk dancing organisations are "officially" on the net. However, some of them can be contacted via the (private) email account of one of their members or have at least a fax number.
So I can just offer the following German institutions, which are even maintaining webpages: