Some of the links on the English version don’t work, but the Porguese version appears to be ok. The drawings are risque, but all the photos I looked at were G rated (trains and scenery).
The maps are great. They show some of the old companies that were taken over by RFFSA in the 1960´s. Most of the lines still in operation under the control of modern companies like ALL, FCA and MRSL. Here is a modern map of brazilian railroads.
I could not get the first site to work.