While I am a member of several train forums I am only really active on 3. Trains.com socalrailfan.com wplives.org (Western Pacific Railroad museum, former Feather River rail society)
Only Trains.com…but then again, I usually have a slow speed dial up and sometimes park where that doesnt work either…its only recently I have been visiting regularly. Current budget doesnt allow for mobile internet[:(!] but I try to browse around lots when I manage to wrangle a wi-fi connection…[^]
I stop in here, over at www.dpreview.com (mostly the Canon D30/D60/10D/20D/30D and Canon Lens forums), and occasionally I stop in at www.grumpysworld.com and post there (though I haven’t in awhile…been kind of dead over there).
This is the only RR forum I’m on. The only group I subscribe to is MCC’s LayLink (church group). I don’t have the time to contribute to any others and I can’t just read them and keep quiet!
I am now addicted to Yahoo! Answers. Sorry all. Yahoo doesn’t get many people asking for train stuff, and quite frankly I tell them to register on trains.com and ask their question to the members here!