Model Railroad Hobbyist Shame on you if you do not subscribe to this GREAT web magazine: it’s FREE!
Model Railroader Web site for the magazine of the same name
Railroad Model Craftsman Ditto as above
NGSLG Narrow Gauge and Shortline Gazette: a priceless resource
Model Railroading Past Issues Ceased publication, but back issues available on CD as PDF’s
Fine Scale Modeler What? You don’t check out related modeling? You should!
Model Railroad News Back from the dead and none the worse for wear. You want reviews?
Fine Scale Railroader Another fallen flag available digitally, also awesome annuals
Rail Model Journal Trainlife has online access to many old magazines, a treasure
Railroad Lines Forum Non-manufacturer specific forums on all topics of model railroading
Railroad Kits Forum Manufacturer supported site covering all topics of model railroading
ModelRailroad Forums Another great forum, non-manufacturer specific
The Whistle Post Looking for a quiet but thoughtful hangout place? You got it.
Trainlife Great little forum, lots of out of print magazines, videos, photos, great!
Scratchbuilders Guild Construction threads, how to articles, nice little forum. No guild dues.
Trains.com Model Railroader magazine forums: the McDonalds of forums
Fine Scale Miniatures Much more than just an FSM tribute site, great modeling thoughts
Train Tools All sorts of information on stuff that works
B&M Railroad Self explanatory
HO Railroading Not about O, that is for sure
Buildings and Structures Buildings and…oh you get it
JMRI Computer interface for decoders and more
Layout Construction Helps you construct layouts!
NCC DCC I use NCE. This group helps a lot
Waterfront Modeling I do a lot of this
Weathering Everything new is old again
Railserve Serves up links to every rail thing you can imagine