Here some interesting links:

Links for "farming":

www.naturland.de this is my crop growing association
www.naturland-markt.de meine market cooperation
www.bio-mit-gesicht.de
www.traktorpool.de
www.tec24.com
www.angus-bundesverband.de more about angus cows
gestuet-am-nussbaum Islandhorses

also some " musical" links

www.MartinSander.de my most recent and absolute best professor for the pipe organ
www.Marketa-reindlova.com a very nice colleague
www.gloger.no informationen of the Gloger-pipe organ in Kongsberg
www.rudolmueller.eu colleague from Würzburg
www.simone-unger.de soprano singer from Koblenz