I stumbled across this gold mine of good pictures that is GREAT for referencing particular cars without the hassle of looking for a good detail pic.
http://www.rrpicturearchives.net
On this website you can look up cars by roadnumber, roadname, type, and it even has some info about that particular car. I have found it handy in the last few days as I am ALWAYS looking for a good example (usually fallen flag) of the dirtiest, most beat up, and real looking railroad cars this side of the tracks!! Anyways, I was pretty excited to find such a place and if you haven't yet checked this out, you may want to....especially you prototypical modelers that like to weather your own stuff!
-Rich
http://www.rrpicturearchives.net
On this website you can look up cars by roadnumber, roadname, type, and it even has some info about that particular car. I have found it handy in the last few days as I am ALWAYS looking for a good example (usually fallen flag) of the dirtiest, most beat up, and real looking railroad cars this side of the tracks!! Anyways, I was pretty excited to find such a place and if you haven't yet checked this out, you may want to....especially you prototypical modelers that like to weather your own stuff!
-Rich