from the really big sound project SOUNDTRANSIT at http://soundtransit.nl here you find hundreds of artists and thousands of sounds (field recordings). travel around the world with your ears only. this project is managed by Derek Holzer, Sara Kolster and Marc Boon. check the link in Dereks comment !
Hey Wolfgang, thanks for the shout-out! I’m doing last minute preparations for a TONEWHEELS workshop in Dortmund this weekend. You can check the project here: http://www.umatic.nl/tonewheels.html. Best wishes from Berlin! D.