On-line sources where you can get information and answers to questions about Z scale model railroading.
A listing here is not necessarily a recommendation. I've just found that they do carry Z scale trains and/or accessories.
Folks that manufacture and/or sell trains and supplies with their company's name on them.
5. Accessories - Layout and Miscellaneous
A. By Manufacturer - There are a number of manufacturers of layout and other accessories that do not necessarily have their own web sites, but their products are carried by the On-Line Stores mentioned above.