I was anti-facebook for a loooooong time. This year I finally got on it and WOW! the amount of model railroad groups, prototype groups, railroad historical groups etc... is amazing!! There are literally thousands of photographs that are posted that have rarely if ever been published or seen. It is now a resource worth its weight in gold. Only down side is; that due to all that new data, it is a huge time zapper.
Facebook only. 