Foothill Rails
Stockton Tower (Photos)
Burlington Northern Santa Fe Railway
Union Pacific Railroad
Live Train Cameras
General Electric Locomotives
The Railfan Network
Train Yards dot com

Pacific Southern (Shelton Campbell)
Siskiyou Line (Joe Fugate)
Yosemite Valley (Jack Burgess)
Virginian Railway HO Scale, 1957(Mike Dodd)
Housatonic Railroad (Craig Bisgeier)
Grosser's Nostalgia Trip
Inyo & White Mtn. RR (Jeffrey Sipress)
Bear Creek & South Jackson (Charlie Comstock)
Teton Short Line (Wayne Roderick)
Sierra Western & Santa Fe (Rick Fortin)
Boomer Bill's New Green Bay Southern (Bill Wright)

National Model Railroad Association
Layout Design SIG

The SWPA Model Railroad
Bill Denton's N Scale KINGSBURY BRANCH

Digitrax (Digital Command Control)
TracTronics

Western Pacific
Southern Pacific Historical & Technical Society
Union Pacific Historical Society

Trains 
Model Railroader
Model Railroading
Model Railroad Craftsman

Clubs/Other

Sacramento Model Railroad Club
San Diego Model Railroad Museum
Model Railroading With Larry Puckett
Pacific Western Rail Systems
Puget Sound Model Railroad Engineers