I was goofing off and looking for information on wikipedia when I came across their railroad section which listed all of the shortline railroads in Iowa (where I live). I was able to find the local railroad and a list of all the companies they service in my town. I am now going to pick out 3-5 of them and build a "modified" verison of my town. I also know people who work at these companies so I can get info on what the trains deliver and ship out. I am so excited since I was kind of stuck on what industries to build.