How can you find information on Nazi coins?

you can get most of the information you need from 1 of 2 site i know of: coin-collecting-values.com german.coins.com hope this helps

Here are several websites to get you going :

http://www.luckylukeonline.com

http://djmandy.com

http://www.wwii-collectibles.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=WOC&Category_Code=grc

http://www.joelscoins.com/nazi.htm

http://www.germancoins.com

http://www.sammler.com/muenzdatenbank/auswahl.asp?laden=Dritte-Reich-M%FCnzen&sprache=deutsch (in German)

If you have a more specific question, please ask again.