There is a excellent free Marx group on yahoo. They are very active with collecting, operating, repairing and restoring of Marx trains. They are very friendly, have photos and are eager to help anyone with questions. They mostly discuss Marx trains, but also others as well.

I've learned quite a bit from them. Fun just to chat too! A super group of train people from all over the world.

Take a look!

http://groups.yahoo.com/group/MarxTrain/