Gateway NMRA
This great reference site for model railroaders, from the Gateway (St. Louis) division of the NMRA (National Model Railroad Association), is filled with past and present railroad projects, layouts, restorations, and show updates. The site also features articles and magazine covers in high resolution, plus an entire library of useful modeling information from scenery and structures to convention preparation. If you're looking for information or inspiration for your layout, check it out!