www.benchmarkworks.com 
Craig is the best BMW guy in the USA, for anything BMW related go to Vech's site.

www.dkw-nz.net
The DKW NZ350 web site- The Internets only dedicated site to WW2 German DKW NZ

uk.groups.yahoo.com/group/KRADRIDER/
International discussion group in English around WH WW2 motorbikes and equipment.

http://www.zundapp.net.pl/de/
Spares and services to Zundapp motorcycles and sidecars. Henryk also runs a repair service.

http://rrc-tuning.de/shop/Wolfgangs Store is dedicated to BMW R12 parts only. A great source and trusted dealer. He speaks english and takes paypal.

http://www.zundapp-ks600.org Oliviers KS600 web site is the best in French out there! He also has a translator at the top of the page to help someone out who doesnt speak French. He has details on every step in a restoration page and can help out anyone who is restoring a KS600.

www.kastenrahmen.de
A great site for Zundapps and a forum as well. Dedicated to Zundapps from the 30's into the 40's.

www.wehrmachtsgespann.de
H.P. Hommes is dedicated to heavy WH motorbike combos like the BMW R75 and the Zundapp KS750. He offers parts and service for the war bikes.

http://vintagebmw.org/version6/
Dedicated web site for Vintage BMW motorcycles,they have a nice site with a very nice forum.

http://histor.ws/bmwr12/
This is the best web site dedicated to the BMW R12, hands down. It contains all technical data related to the BMW R12 motorcycle, current owners bikes , period photos, restorations, drawings,etc.

http://www.oldtimergarage.eu/store/

A great web site for parts for your BMW, Zundapp and DKW vintage bikes. Good trusted dealer, they take paypal and speak english.